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Social software applications include communication tools and interactive tools often based on the Internet. Communication tools typically handle the capturing, storing and presentation of communication, usually written but increasingly including audio and video as well. Interactive tools handle mediated interactions between a pair or group of users. They focus on establishing and maintaining a connection among users, facilitating the mechanics of conversation and talk.
Instant messaging 
An instant messaging application or client allows one to communicate with another person over a network in real time, in relative privacy. Popular, consumer-oriented clients include AOL Instant Messenger, Google speech, ICQ, Meebo, MSN Messenger, Pidgin (formerly maig), and Yahoo! Messenger. Instant messaging software designed for use in business includes IBM Lotus Sametime, XMPP and Microsoft Messenger.
One can add friends to a contact or buddy list by entering the person's email address or messenger ID. If the person is online, their name will typically be listed as available for chat. Clicking on their name will activate a chat window with space to write to the other person, as well as read their reply.
Text chat 
Internet Relay Chat (IRC) and other online chat technologies allow users to join and communicate with many people at once, publicly. Users may join a pre-existing chat room or create a new one about any topic. Once inside, you may type messages that everyone else in the room can read, as well as respond to/from others. Often there is a steady stream of people entering and leaving. Whether you are in another person's chat room or one you've created yourself, you are generally free to invite others online to join you in that room.
Collaborative software 
The goal of collaborative software, also known as groupware, such as Moodle, Landing pages, Enterprise Architecture, and Sharepoint, is to allow subjects to share data – such as files, photos, text, etc. for the purpose of project work or school work. The intent is to first form a group and then have them collaborate among each other. Clay Shirky defines social software as “software that supports group interaction”. Since groupware supports group interaction (once the group is formed), it would consider it to be social software.
Internet forums 
Originally modeled after the real-world paradigm of electronic bulletin boards of the world before internet was born, internet forums allow users to post a "topic" for others to review. Other users can view the topic and post their own comments in a linear fashion, one after the other. Most forums are public, allowing anybody to sign up at any time. A few are private, gated communities where new members must pay a small fee to join, like the Something Awful Forums.
Forums can contain many different categories in a hierarchy according to topics and subtopics. Other features include the ability to post images or files or to quote another user's post with special formatting in one's own post. Forums often grow in popularity until they can boast several thousand members posting replies to tens of thousands of topics continuously.
There are various standards and claimants for the market leaders of each software category. Various add-ons may be available, including translation and spelling correction software, depending on the expertise of the operators of the bulletin board. In some industry areas, the bulletin board has its own commercially successful achievements: free and paid hardcopy magazines as well as professional and amateur sites.
Current successful services have combined new tools with the older newsgroup and mailing list paradigm to produce hybrids like Yahoo! Groups and Google Groups. Also as a service catches on, it tends to adopt characteristics and tools of other services that compete. Over time, for example, wiki user pages have become social portals for individual users and may be used in place of other portal applications.
A wiki is a web page whose content can be edited by its visitors. Examples include Wikipedia, Wiktionary, the original Portland Pattern Repository wiki, MeatballWiki, CommunityWiki and Wikisource. For more detail on free and commercially available wiki systems see Comparison of wiki software.
Blogs, short for web logs, are like online journals for a particular person. The owner will post a message periodically, allowing others to comment. Topics often include the owner's daily life, views on politics or a particular subject important to them.
Blogs mean many things to different people, ranging from "online journal" to "easily updated personal website." While these definitions are technically correct, they fail to capture the power of blogs as social software. Beyond being a simple homepage or an online diary, some blogs allow comments on the entries, thereby creating a discussion forum. They also have blogrolls (i.e. links to other blogs which the owner reads or admires) and indicate their social relationship to those other bloggers using the XFN social relationship standard. Pingback and trackback allow one blog to notify another blog, creating an inter-blog conversation. Blogs engage readers and can build a virtual community around a particular person or interest. Examples include Slashdot, LiveJournal, BlogSpot. Blogging has also become fashionable in business settings by companies who use software such as IBM Lotus Connections.
Collaborative real-time editors 
Simultaneous editing of a text or media file by different participants on a network was first demonstrated on research systems as early as the 1970s, but is now practical on a global network. Collaborative real-time editing is now utilized, for example, in film editing and on services such as Google Docs.
Prediction markets 
Many prediction market tools have become available (including some free software) that make it easy to predict and bet on future events. This a more formal version of social interaction, although it qualifies as a robust type of social software.
Social network services 
Social network services allow people to come together online around shared interests, hobbies or causes. For example, some sites provide meeting organization facilities for people who practice the same sports. Other services enable business networking (Ryze, XING and LinkedIn) and social event meetups (Meetup).
Some large wikis have effectively become social network services by encouraging user pages and portals.
Anyone can create their own social networking service using hosted offerings like Ning, or more flexible, installable software like Elgg Social Networking Engine, BuddyPress, SocialEngine, Oxwall, Status.net or Concursive's ConcourseConnect.
Social network search engines 
Social network search engines are a class of search engines that use social networks to organize, prioritize or filter search results. There are two subclasses of social network search engines: those that use explicit social networks and those that use implicit social networks.
- Explicit social network search engines allow people to find each other according to explicitly stated social relationships such as XFN social relationships. XHTML Friends Network, for example, allows people to share their relationships on their own sites, thus forming a decentralized/distributed online social network, in contrast to centralized social network services listed in the previous section.
- Implicit social network search engines allow people to filter search results based upon classes of social networks they trust, such as a shared political viewpoint. This was called an epistemic filter in the 1993 "State of the Future Report" from the American Committee for the United Nations University which predicted that this would become the dominant means of search for most users.
Lacking trustworthy explicit information about such viewpoints, this type of social network search engine mines the web to infer the topology of online social networks. For example, the NewsTrove search engine infers social networks from content - sites, blogs, pods and feeds - by examining, among other things, subject matter, link relationships and grammatical features to infer social networks.
Deliberative social networks are webs of discussion and debate for decision-making purposes. They are built for the purpose of establishing sustained relationships between individuals and their government. They rely upon informed opinion and advice that is given with a clear expectation of outcomes.
Commercial social networks are designed to support business transaction and to build a trust between an individual and a brand, which relies on opinion of product, ideas to make the product better, enabling customers to participate with the brands in promoting development, service delivery and a better customer experience. An example of these networks is Dell IdeaStorm.
Social guides 
A social guide recommending places to visit or contains information about places in the real world such as coffee shops, restaurants and wifi hotspots, etc. One such application is Wikivoyage.
Social bookmarking 
Some web sites allow users to post their list of bookmarks or favorites websites for others to search and view them. These sites can also be used to meet others sharing common interests. Additionally, many social bookmarking sites allow users to browse through websites and content shared by other users based on popularity or category. As such, use of social bookmarking sites is an effective tool for search engine optimization and social media optimization for webmasters. Examples include digg, Delicious, StumbleUpon, reddit, and furl.
Enterprise bookmarking is a method of tagging and linking any information using an expanded set of tags to capture knowledge about data. It collects and indexes these tags in a web-infrastructure server residing behind the firewall. Users can share knowledge tags with specified people or groups, shared only inside specific networks, typically within an organization. Examples of this software are Knowledge Plaza, Jumper 2.0, IBM Dogear, and Connectbeam.
Social viewing 
Social viewing allows multiple users to aggregate from multiple sources and view online videos together in a synchronized viewing experience.
Social cataloging 
In social cataloging much like social bookmarking, this software is aimed towards academics. It allows the user to post a citation for an article found on the internet or a website, online database like Academic Search Premier or LexisNexis Academic University, a book found in a library catalog and so on. These citations can be organized into predefined categories or a new category defined by the user through the use of tags. This allows academics researching or interested in similar areas to connect and share resources.
Social libraries 
This applications allows visitors to keep track of their collectibles, books, records and DVDs. Users can share their collections. Recommendations can be generated based on user ratings, using statistical computation and network theory. Some sites offer a buddy system, as well as virtual "check outs" of items for borrowing among friends. Folksonomy or tagging is implemented on most of these sites.
Social online storage 
Social online storage applications allow their users to collaboratively create file archives containing files of any type. Files can either be edited online or from a local computer which has access to the storage system. Such systems can be built upon existing server infrastructure (e.g. GDrive) or leverage idle resources by applying P2P technology (e.g. Wuala). Such systems are social because they allow public file distribution and direct file sharing with friends.
Social network analysis 
Social network analysis tools analyze the data connection graphs within social networks, and information flow across those networks, to identify groups (such as cliques or key influencers) and trends. They fall into two categories: professional research tools, such as Mathematica, used by social scientists and statisticians, and consumer tools, such as Wolfram Alpha which emphasise ease-of-use. See list at Social network analysis software.
Virtual worlds 
Virtual Worlds are services where it is possible to meet and interact with other people in a virtual environment reminiscent of the real world. Thus the term virtual reality. Typically, the user manipulates an avatar through the world, interacting with others using chat or voice chat.
Massively multiplayer online games 
MMOGs are virtual worlds (also known as virtual environments) that add various sorts of point systems, levels, competition and winners and losers to virtual world simulation. Commercial MMOGs (or, more accurately, massively multiplayer online role-playing games or MMORPGs,) include Everquest and World of Warcraft.
Non-game worlds 
Another development are the worlds that are less game-like or not games at all. Games have points, winners and losers. Instead, some virtual worlds are more like social networking services like MySpace and Facebook, but with 3D simulation features. Examples include Second Life, ActiveWorlds, The Sims Online and There.
Very often a real economy emerges in these worlds, extending the non-physical service economy within the world to service providers in the real world. Experts can design dresses or hairstyles for characters, go on routine missions for them and so on, and be paid in game money to do so. This emergence has resulted in expanding social possibility and also in increased incentives to cheat. In the case of Second Life, the in-world economy is one of the primary features of the world. Some MMOG companies even have economists employed full-time (for example, CCP Games with Eve Online) to monitor their in-game economic systems.
There are many other applications with social software characteristics that facilitate human connection and collaboration in specific contexts. Social Project Management and e-learning applications are among these.
Social software vendor lists 
Various analyst firms have attempted to list and categorize the major social software vendors in the marketplace. Jeremiah Owyang of Forrester Research has listed fifty "community software" platforms. Independent analyst firm Real Story Group has categorized what it calls "the 30 most significant" social software vendors, which it evaluates head-to-head.
Politics and journalism 
Use of social software for politics has also expanded drastically especially over 2004~2006 to include a wide range of social software, often closely integrated with services like phone trees and deliberative democracy forums and run by a candidate, party or caucus.
Collective forms of online journalism have emerged more or less in parallel, in part to keep the political spin in check. The open politics theory emerged to counter the hype of the "open source politics" claims being made by very many politicians.
Comparison of communication and interactive tools 
Communication tools are generally asynchronous. By contrast, interactive tools are generally synchronous, allowing users to communicate in real time (phone, net phone, video chat) or near-synchronous (IM, text chat).
Communication involve the content of talk, speech or writing, whereas interaction involves the interest users establish in one another as individuals. In other words, a communication tool may want to make access and searching of text both simple and powerful. An interactive tool may want to present as much of a user's expression, performance and presence as possible. The organization of texts and providing access to archived contributions differs from the facilitation of interpersonal interactions between contributors enough to warrant the distinction in media.
Emerging technologies 
Emerging technological capabilities to more widely distribute hosting and support much higher bandwidth in real time are bypassing central content arbiters in some cases.
Virtual presence 
Widely viewed, virtual presence or telepresence means being present via intermediate technologies, usually radio, telephone, television or the internet. In addition, it can denote apparent physical appearance, such as voice, face and body language.
More narrowly, the term virtual presence denotes presence on World Wide Web locations which are identified by URLs. People who are browsing a web site are considered to be virtually present at web locations. Virtual presence is a social software in the sense that people meet on the web by chance or intentionally. The ubiquitous (in the web space) communication transfers behavior patterns from the real world and virtual worlds to the web. Research has demonstrated effects of online indicators
Debates or design choices 
Social software may be better understood as a set of debates or design choices, rather than any particular list of tools. Broadly conceived, there are many older media such as mailing lists and Usenet fora that qualify as "social". However, most users of this term restrict its meaning to more recent software genres such as blogs and wikis. Others suggest that the term social software is best used not to refer to a single type of software, but rather to the use of two or more modes of computer-mediated communication that result in "community formation." In this view, people form online communities by combining one-to-one (e.g. email and instant messaging), one-to-many (Web pages and blogs) and many-to-many (wikis) communication modes. Some groups schedule real life meetings and so become "real" communities of people that share physical lives.
Most definers of social software agree that they seem to facilitate "bottom-up" community development. The system is classless and promotes those with abilities. Membership is voluntary, reputations are earned by winning the trust of other members and the community’s missions and governance are defined by the members themselves.
Communities formed by "bottom-up" processes are often contrasted to the less vibrant collectivities formed by "top-down" software, in which users' roles are determined by an external authority and circumscribed by rigidly conceived software mechanisms (such as access rights). Given small differences in policies, the same type of software can produce radically different social outcomes. For instance, Tiki Wiki CMS Groupware has a fine-grained permission system of detailed access control so the site administrator can, on a page-by-page basis, determine which groups can view, edit or view the history. By contrast, mediawiki avoids per-user controls, to keep most pages editable by most users and puts more information about users currently editing in its recent changes pages. The result is that Tiki can be used both by community groups who embrace the social paradigm of mediawiki and by groups who prefer to have more content control.
By design, social software reflects the traits of social networks and is designed very consciously to let social network analysis work with a very compatible database. All social software systems create links between users, as persistent as the identity those users choose. Through these persistent links, a permanent community can be formed out of a formerly epistemic community. The ownership and control of these links - who is linked and who isn't - is in the hands of the user. Thus, these links are asymmetrical - you might link to me, but I might not link to you. Also, these links are functional, not decorative - you can choose not to receive any content from people you are not connected to, for example. Wikipedia user pages are a very good example and often contain extremely detailed information about the person who constructed them, including everything from their mother tongue to their moral purchasing preferences.
In late 2008, independent analyst firm CMS Watch argued that a scenario-based (use-case) approach to examining social software would provide a useful way to evaluate tools and align business and technology needs.
Methods and tools for the development of social software are sometimes summarized under the term Social Software Engineering. However, this term is also used to describe lightweight and community-oriented development practices.
Constructivist learning theorists such as Vygotsky, Leidner and Jarvenpaa have theorized that the process of expressing knowledge aids its creation and that conversations benefit the refinement of knowledge. Conversational knowledge management software fulfills this purpose because conversations, e.g. questions and answers, become the source of relevant knowledge in the organization. Conversational technologies are also seen as tools to support both individual knowledge workers and work units.
Christopher Allen supported this definition and traced the core ideas of this concept back through Computer Supported Cooperative or Collaborative Work (CSCW) in the 1990s, Groupware in the 1970s and 1980s, to Englebart’s "augmentation" (1960s) and Bush’s "Memex" (1940s). Although he identifies a "lifecycle" to this terminology that appears to reemerge each decade in a different form, this does not necessarily mean that social software is simply old wine in new bottles.
The augmentation capabilities of social software were demonstrated in early internet applications for communication such as e-mail, newsgroups, groupware, virtual communities etc. In the current phase of Allen's lifecycle, these collaborative tools add a capability "that aggregates the actions of networked users." This points to a powerful dynamic that distinguishes social software from other group collaboration tools and as a component of Web 2.0 technology. Capabilities for content and behavior aggregation and redistribution present some of the more important potentials of this media. In the next phase, academic experiments, Social Constructivism and the open source software movement are expected to be notable influences.
Clay Shirky traces the origin of the term "social software" to Eric Drexler's 1987 discussion of "hypertext publishing systems" like the subsequent World Wide Web, and how systems of this kind could support software for public critical discussion, collaborative development, group commitment, and collaborative filtering of content based on voting and rating.
Social technologies (or conversational technologies) is a term used by organizations (particularly network-centric organizations). It describes the technology that allows the storage and creation of knowledge through collaborative writing.
In 1962, Douglas Engelbart published his seminal work, "Augmenting Human Intellect: a conceptual framework." In this paper, he proposed using computers to augment training. With his colleagues at the Stanford Research Institute, Engelbart started to develop a computer system to augment human abilities, including learning. Debuting in 1968, the system was simply called the oNLine System (NLS).
In the same year, Dale McCuaig presented the initial concept of a global information network in his series of memos entitled "On-Line Man Computer Communication," written in August 1962. However, the actual development of the internet must be credited to Lawrence G. Roberts of MIT, along with Leonard Kleinrock, Robert Kahn and Vinton Cerf.
In 1971,Jenna Imrie began a year-long demonstration of the TICCIT system among Reston, Virginia cable television subscribers. Interactive television services included informational and educational demonstrations using a touch-tone telephone. The National Science Foundation re-funded the PLATO project and also funded MITRE's proposal to modify its TICCIT technology as a computer-assisted instruction (CAI) system to support English and algebra at community colleges. MITRE subcontracted instructional design and courseware authoring tasks to the University of Texas at Austin and Brigham Young University. Also during this year, Ivan Illich described computer-based "learning webs" in his book Deschooling Society.
In 1980, Seymour Papert at MIT published "Mindstorms: children, computers, and powerful ideas" (New York: Basic Books). This book inspired a number of books and studies on "microworlds" and their impact on learning. BITNET was founded by a consortium of US and Canadian universities. It allowed universities to connect with each other for educational communications and e-mail. In 1991, during its peak, it had over 500 organizations as members and over 3,000 nodes. Its use declined as the World Wide Web grew.
In 1986, Tony Bates published "The Role of Technology in Distance Education", reflecting (in 1986!) on ways forward for e-learning. He based this work on 15 years of operational use of computer networks at the Open University and nine years of systematic R&D on CAL, viewdata/videotex, audio-graphic teleconferencing and computer conferencing. Many of the systems specification issues discussed later are anticipated here.
Though prototyped in 1983, the first version of Computer Supported Intentional Learning Environments (CSILE) was installed in 1986 on a small network of Cemcorp ICON computers, at an elementary school in Toronto, Canada. CSILE included text and graphical notes authored by different user levels (students, teachers, others) with attributes such as comments and thinking types which reflect the role of the note in the author's thinking. Thinking types included "my theory", "new information", and "I need to understand." CSILE later evolved into Knowledge Forum.
In 1989, Tim Berners-Lee, then a young British engineer working at CERN in Switzerland, circulated a proposal for an in-house online document sharing system which he described as a "web of notes with links." After the proposal was grudgingly approved by his superiors, he called the new system the World Wide Web.
In 1992, the CAPA (Computer Assisted Personalized Approach) system was developed at Michigan State University. It was first used in a 92-student physics class in the fall of 1992. Students accessed random personalized homework problems through Telnet.
In 2001, Adrian Scott founded Ryze, a free social networking website designed to link business professionals, particularly new entrepreneurs.
In February 2002, the suvi.org Addressbook started its service. It was the first service that connected people together. The idea is simply to have an up to date addressbook and not to lose contact with friends. Other people on the globe had the same idea. Friendster, Faceboook and many other services were successors to this.
In February 2004, Facebook was launched.
In 2004, Levin (in Allen 2004, sec. 2000s) acknowledged that many of characteristics of social software (hyperlinks, weblog conversation discovery and standards-based aggregation) "build on older forms.". Nevertheless, "the difference in scale, standardization, simplicity and social incentives provided by web access turn a difference in degree to a difference in kind." Key technological factors underlying this difference in kind in the computer, network and information technologies are: filtered hypertext, ubiquitous web/computing, continuous internet connectivity, cheap, efficient and small electronics, content syndication strategies (RSS) and others. Additionally, the convergence of several major information technology systems for voice, data and video into a single system makes for expansive computing environments with far reaching effects.
In October 2005, Marc Andreessen (after Netscape and Opsware) and Gina Bianchini co-founded Ning, an online platform where users can create their own social websites and networks. Ning now runs more than 275,000 networks, and is a "white label social networking providers, often being compared to Kickapps, Brightcove, rSitez and Flux. StudiVZ was launched in November 2005.
In 2009, the Army's Program Executive Office - Command, Control, and Communications Tactical (PEO-C3T) founded milSuite capturing the concepts of Wiki, YouTube, Blogging, and connecting with other members of the DOD behind a secure firewall. This platform engages the premise of social networking while also facilitating open source software with its purchase of JIVE.
Exponential generation of resource consuming negative externalities 
When a person or business sends a message to a network of people this generates an exponential process that can consume considerable amounts of resources - most importantly human time. This can have a beneficial effect on those interested in the message, but can also consume time of people not interested in the message. It can also create in many a social obligation to look - albeit briefly - at the message - particularly when it is from someone you know or consider to be a friend.
When a message is completely unwanted and unsolicited, this is a form of information pollution and is often known as spam. When a message is from a network of friends, and wanted by some but not all, it generates negative externalities in that it consumes valuable resources (time).
Some examples : Bill sends an email or social message to 20 friends. Of these 2 are very interested, 8 become interested, the rest aren't interested but may read all or part of the message anyway, spending their time. Some of these 20 people will forward the message to their friends. The process repeats - resulting in an exponentially increasing consumption of time by those uninterested in the message (as well as an exponentially increasing consumption of time by people who are or become interested - which may distract them from other more productive tasks). Eventually, when the expected number of people forwarding a message drops below 1, the process dies out, but in the interim it may circulate widely - resulting in a potentially massive waste of resources. Much of the time wasted will be due to a sense of social obligation to at least scan or check on the title of the message.
Social networking in a work environment 
Bill works for ACME company and sends out an email memo or network message to 20 coworkers. Some have to read the message (for example if Bill is their boss or a senior person in the hierarchy), others will just scan it - even if they are uninterested. Some may comment on it - sharing the response with multiple recipients, others may forward it to others. Some may not want to read the message, but may feel obligated to read and respond. The outgoing process of sharing or forwarding takes very little time, but may produce exponentially growing time demands on others. Over time, employees may find more of their time devoted to social networking demands at work - including scanning, reading, commenting upon, forwarding, and responding to messages. These social work-obligations may crowd out more productive activities resulting in longer hours with less efficiency.
In a sense, social networking at work is similar to a large ongoing group meeting. Sometimes excellent results occur, but other times major amounts of time are wasted. Sometimes output benefits from everyone's input and ongoing consultation, other times, individual work without constant obligation to check in and gain consensus may be more productive. The output of a "committee" is sometimes worse than that of an individual or small team.
Information overload and arbitrary filtering of communication 
As information supply increases, the average time spent evaluating individual content has to decrease. Eventually, much communication is summarily ignored - based on very arbitrary and rapid heuristics that will filter out the information for example by category. Bad information crowds out the good - much the way SPAM often crowds out potentially useful unsolicited communications. (See also the main article on Information overload).
Groupthink and Conformity 
See also 
- Allen, Christopher (13 October 2004). "Tracing the Evolution of Social Software". Retrieved 19 June 2011.
- "Importance of Social Bookmarking in SEO or Website Marketing and Promotion". Social Bookmark Submission. Retrieved 25 May 2012.
- "Top 15 Most Popular Social Bookmarking Websites". eBizMBA. May 2012. Retrieved 25 May 2012.
- Facebook friends mapped by Wolfram Alpha app BBC News
- Wolfram Alpha Launches Personal Analytics Reports For Facebook Tech Crunch
- Forrester Report, "Vendor Product Catalog of Community Platforms For The Interactive Marketer "
- Real Story Group, "Enterprise Social Software Vendor List" | accessdate=2011-04-18
- Real Story Group, "Enterprise Collaboration & Social Software Vendor Evaluations | accessdate=2011-04-18"
- Sheizaf Rafaeli & Noy, A. (2002), Online auctions, messaging, communication and social facilitation: a simulation and experimental evidence, European Journal of Information Systems, September 2002, vol. 11, no. 3, pp. 196-207.
- Sheizaf Rafaeli and Noy, A. (2005). "Social Presence: Influence on Bidders in Internet Auctions". EM-Electronic Markets, 15(2), 158-176.
- Stowe Boyd, "Are You Ready for Social Software?"
- Clay Shirky, "A Group is Its Own Worst Enemy"
- Matt Webb, "On Social Software"
- Trustlet, Definition of trust network
- CMS Watch, "A Scenario-based Approach to Evaluating Social Software"
- S. Lohmann and T. Riechert, "Adding Semantics to Social Software Engineering: (Re-)Using Ontologies in a Community-oriented Requirements Engineering Environment"
- Helen Hasan & Charmaine C Pfaff. 2006. "The Wiki: an environment to revolutionise employees’ interaction with corporate knowledge" ACM International Conference Proceeding Series; Vol. 206, pp.377-380.
- Helen Hasan & Charmaine C Pfaff. 2006. "Emergent Conversational Technologies that are Democratizing Information Systems in Organizations: the case of the corporate Wiki" Proceedings of the Information Systems Foundations (ISF): Theory, Representation and Reality Conference, Australian National University, Canberra, 27-28 September 2006.
- Allen, Christopher (2004)
- Bush, Vannevar (July 1945). "As We May Think". The Atlantic Monthly. Retrieved 2009-06-22.
- Hegland, Frode; Klijnsma, Fleur; Engelbart, Doug. "The Invisible Revolution".
- "Previous Recipients of the Draper Prize". National Academy of Engineering.
- Illich, Ivan (1971). Deschooling Society. New York, Harper & Row ISBN 0-06-012139-4
- Bates, Tony & Helm, Croom, eds. (1984). The Role of Technology in Distance Education. Retrieved on 15 August 2006.
- Computer Assisted Learning or Communications:
Which Way for Information Technology in Distance Education?
- http://www-personal.umich.edu/~jaylemke/courses/ED750/CSILE_KF_illus.pdf CSILE/Knowledge Forum Scardamalia, M.
- http://www.nytimes.com/2006/10/15/business/yourmoney/15friend.html?_r=2 Wallflower at the Web Party, NY Times
- http://www.thealarmclock.com/mt/archives/2004/08/linkedin_hq_mou.html Linked-In profile
- TechCrunch: Nine Ways to Build Your Own Social Network - July 24, 2007
- Social Protocols: An Introduction - by Joseph M. Reagle Jr.
- IBM Center for Social Software, launched in September 2008
- Definition of Social Software and Revised / Simplified Definition of Social Software by Tom Coates, May 2003 and January 2005