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Added more examples of popular Drupal distributions: openatrium, openpublish, tattler (app) and ubercart.
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===Acquia===
===Acquia===
In 2007, a Drupal-focused company, Acquia, was created by Drupal project lead [[Dries Buytaert]] and [[Jay Batson]]. Acquia announced a subscription-based service for Drupal at Drupalcon Boston 2008 and started services with Acquia Drupal, a distribution based on Drupal 6, in September 2008. Subscriptions include one or more Drupal distributions, a set of companion network-supplied value-add services, and access to a Technical Assistance Center.<ref>{{cite web |url=http://acquia.com/products-services/acquia-frequently-asked-questions#FAQmain1 |title=Acquia FAQ |work=Acquia |accessdate=2009-04-08 }}</ref>
In 2007, a Drupal-focused company, Acquia, was created by Drupal project lead [[Dries Buytaert]] and [[Jay Batson]]. Acquia announced a subscription-based service for Drupal at Drupalcon Boston 2008 and started services with Acquia Drupal, a distribution based on Drupal 6, in September 2008. Subscriptions include one or more Drupal distributions, a set of companion network-supplied value-add services, and access to a Technical Assistance Center.<ref>{{cite web |url=http://acquia.com/products-services/acquia-frequently-asked-questions#FAQmain1 |title=Acquia FAQ |work=Acquia |accessdate=2009-04-08 }}</ref>

===OpenAtrium===
Open Atrium, a Drupal distribution, is an intranet in a box that has group spaces to allow different teams to have their own conversations. It comes with six features - a blog, a wiki, a calendar, a to do list, a shoutbox, and a dashboard to manage it all. Official website: http://openatrium.com

===OpenPublish===
OpenPublish is a packaged distribution of Drupal, that has been tailored to the needs of today's online publishers. OpenPublish is intended for streamlined implementation of a variety of media outlets sites including magazines, newspapers, journals, trade publications, broadcast, wire service and membership publications. OpenPublish has advanced integration with [[OpenCalais]] and provides rich set of semantic features for the publishers. A number of high-profile publications are using OpenPublish, including: http://tnr.com and http://governing.com. Official website: http://openpublishapp.com

===Tattler (app)===
Tattler (app) is an open source topic monitoring tool for today's Web. Tattler finds and aggregates content from the Web on the topics you want. Using semantic Web technologies, Tattler mines news, websites, blogs, multimedia sites, and other social media like Twitter, to find mentions of the issues most relevant to a journalist, researcher, advocate or communications professional. Built and distributed on open source Drupal, Tattler's allows a user to easily filter, organize and share content gathered from the Web. Official website: http://tattlerapp.com

===Ubercart===
Ubercart is an exciting open source e-commerce package that fully integrates your online store with Drupal, the leading open source content management system. This is a killer combination for anyone looking to build a community around a product, sell access to premium content, offer paid file downloads, and much much more! Official website: http://www.ubercart.org/


==Community==
==Community==

Revision as of 04:56, 27 November 2009

Drupal
Initial releaseJanuary 2001 (2001-01)
Stable release
6.14 / September 16, 2009 (2009-09-16)
Repository
Written inPHP
Operating systemCross-platform
TypeContent management framework, Content management system, Community and Blog software
LicenseGNU General Public License version 2
Websitehttp://drupal.org

Drupal (Template:PronEng) is a free and open source[1] Content Management System (CMS) written in PHP and distributed under the GNU General Public License.[2][3] It is used as a back-end system for many different types of websites, ranging from small personal blogs to Enterprise 2.0 collaboration and knowledge management uses to large corporate and political sites.[4] High-traffic Drupal-based websites include ubuntu.com and seobook.com.[5] In October 2009, the administration of U.S. president Barack Obama adopted Drupal for the official Whitehouse.gov website.[6][7][8]

The standard release of Drupal, known as Drupal core, contains basic features common to most CMSs. These include the ability to register and maintain individual user accounts within a flexible and rich permission / privilege system, create and manage menus, RSS-feeds, customize page layout, perform logging, and administer the system. As installed, Drupal provides options to create a classic brochureware website, a single- or multi-user blog, an Internet forum, or a community website providing for User-generated content.

Drupal was also designed to allow new features and custom behavior to be added to extend Drupal's core capabilities. This is done via installation of plug-in modules (known as contrib modules) created and contributed to the project by open source community members. For this reason, Drupal is sometimes described as a content management framework.[2] Drupal is also described[9] as a web application framework, as it meets the generally accepted feature requirements for such frameworks.

Although Drupal offers a sophisticated programming interface for developers, no programming skills are required for basic website installation and administration.[10]

Drupal can run on any computing platform that supports both a web server capable of running PHP version 4.3.5+ (including Apache, IIS, Lighttpd, and nginx) and a database (such as MySQL or PostgreSQL) to store content and settings.[3]

History

Originally written by Dries Buytaert as a message board, Drupal became an open source project in 2001.[11] Drupal is an English rendering of the Dutch word “druppel”, which means “drop” (as in “a water droplet”).[12] The name was taken from the now-defunct Drop.org website, whose code slowly evolved into Drupal. Buytaert wanted to call the site “dorp” (Dutch for “village”) for its community aspects, but made a typo when checking the domain name and thought it sounded better.[11]

From May 2007 to April 2008, Drupal was downloaded from the Drupal.org website more than 1.4 million times, an increase of approximately 125% from the previous year.[13][14] A large community now helps develop Drupal.[15]

Drupal's popularity is growing rapidly. As of April 2009, over 70 well-known brand names and not-for-profit organizations now use Drupal. [16]

As of September 2009, Drupal 6.14 is the latest release.[17] Drupal is a winner of several Packt Open Source CMS Awards[18] and three times (in a row) a winner in the Webware 100.[19][20]

On March 5, 2009, Dries Buytaert announced a code freeze for Drupal 7 for September 1, 2009.[21] There is no date announced yet for the release of Drupal 7 after this code freeze; the latest test release, DRUPAL-7-0-UNSTABLE-9, was on September 15, 2009.[22]

Drupal core

Drupal core is the stock installation of Drupal, which can be optionally extended by third party contributions. In Drupal's default configuration, website content can be contributed by either registered or anonymous users (at the discretion of the administrator) and made accessible to web visitors by a variety of selectable criteria including by date, category, searches, etc. Drupal core also includes a hierarchical taxonomy system, which allows content to be categorized or tagged with key words for easier access.[10]

Drupal maintains a detailed changelog of core feature updates by version.[23]

Core modules

Drupal core includes core modules which can be enabled by the administrator to extend the functionality of the core website.[24]

The core Drupal distribution provides a number of features[24], including:

Column-generating template families

The templates listed here are not interchangeable. For example, using {{col-float}} with {{col-end}} instead of {{col-float-end}} would leave a <div>...</div> open, potentially harming any subsequent formatting.

Column templates
Type Family
Handles wiki
table code?†
 Responsive/
mobile suited 		Start template Column divider End template
Float "col-float" Yes Yes {{col-float}} {{col-float-break}} {{col-float-end}}
"columns-start" Yes Yes {{columns-start}} {{column}} {{columns-end}}
Columns "div col" Yes Yes {{div col}} – {{div col end}}
"columns-list" No Yes {{columns-list}} (wraps div col) – –
Flexbox "flex columns" No Yes {{flex columns}} – –
Table "col" Yes No {{col-begin}},
{{col-begin-fixed}} or
{{col-begin-small}} 		{{col-break}} or
{{col-2}} .. {{col-5}} 		{{col-end}}

† Can template handle the basic wiki markup {| | || |- |} used to create tables? If not, special templates that produce these elements (such as {{(!}}, {{!}}, {{!!}}, {{!-}}, {{!)}})—or HTML tags (<table>...</table>, <tr>...</tr>, etc.)—need to be used instead.

Core themes

The color editor being used to adjust the "Garland" core theme

Drupal core includes several core themes, which customize the aesthetic look-and-feel of the site. These themes can be chosen by the administrator via a special menu.[25]

The Color Module, introduced in Drupal core 5.0, allows administrators to change the color scheme of certain themes via a Web-browser interface. This feature was added to allow a higher level of customization for the average non-coder.[26]

Translations

As of February 2008, translations for Drupal's interface were available in 44 languages plus English (the default).[27] Some read right to left, such as Arabic, Farsi, and Hebrew. Drupal 6 provides improved support for content and content administration in multiple languages.[28]

Auto-update notification

Drupal can automatically notify the administrator when a new version of any module, theme, or the Drupal core itself, becomes available. This feature can help keep a Drupal installation up-to-date with the latest features and security fixes.[28]

An auto-update module for the older version 5.x provides identical functionality, but it is not included in the core release.[29]

Extending Drupal core

Drupal core is designed to be modular with a system of hooks and callbacks, which are accessed internally via an API.[30] This design allows third-party contributed (often abbreviated to "contrib") modules and themes to extend or override Drupal's default behaviors without changing Drupal core's code.

Drupal's modular design, which isolates Drupal core's files from contributed module and themes, increases flexibility and security and allows Drupal administrators to cleanly upgrade to new releases of Drupal core without potentially overwriting their site's customizations.[31] To maintain this separation, Drupal administrators are instructed to avoid altering Drupal core's software.[32]

Contributed modules

Contributed Drupal modules offer a variety of features including image galleries, custom content types and content listings, WYSIWYG editors, private messaging, third-party integration tools[33], and more. The Drupal website lists over 4600 free modules (as of August 1, 2009), written and contributed to by the Drupal community.[34][35][36]

  • Content Construction Kit (CCK) allows site administrators to dynamically create content types. A content type describes any kind of information to be stored in the website's database. These may include, but are not limited to, events, invitations, reviews, articles, or products.
  • Views facilitates the retrieval and presentation of content to site visitors.

The CCK Fields API has been integrated into Drupal core in the development Drupal 7 branch.[37]

Contributed themes

Contributed themes adapt or replace a Drupal site's default look and feel.

Drupal themes use standardized formats that may be generated by common third-party theme design engines. Many themes for Drupal are written in the PHPTemplate engine[38] or, to a lesser extent, the XTemplate engine.[39] Some templates use hard-coded PHP.

Although early versions of Drupal's theming system were criticized[40] for being less design-oriented and more complicated than those for Mambo, Joomla! and Plone, the inclusion of the PHPTemplate and XTemplate engines in Drupal has addressed some of these concerns.[citation needed] The new Drupal 6 theming system utilizes a template engine in an attempt to further separate HTML/CSS from PHP. A new Drupal development module, Devel, provides assistance to theme authors who use Drupal 6.

Community contributed Drupal themes at the Drupal website are released under GPL license (free), and most of them are demonstrated at the Drupal Theme Garden.

Criticism

  • Usability: Some aspects of Drupal's administration interface can be confusing and intimidating, particularly for new administrators.[41] According to the Interaction Design and Information Architecture program at the University of Baltimore, Drupal lacks an intuitive, easy administration user interface.[42][43][44] The administration area is regarded as clunky and cryptic with Drupal version 5 and 6, but improved ease of use is planned with the upcoming version 7. According to Dries Buytaert, Drupal 7 won't be released until 90% of the problems identified by the University of Minnesota[45][46] and the University of Baltimore[44] are solved. Usability will be one of the main improvements in Drupal 7 that will close the gap with easier CMSs.
  • Learning curve: Some users have described Drupal as having a fairly steep learning curve. [41][47][48]
  • Backward Compatibility (for software development): Drupal's designers have decided that, in terms of programming, backward compatibility may be sacrificed with each major revision.[49] As a result, sometimes a new version's code is not compatible with a previous version. This means that contrib module and theme developers may be required to re-work some or all of their previous code to ensure compatibility with the latest version of Drupal. However, the policy enforced for Drupal core development is that Drupal may change an API, but it will not change how it uses your data. This means that while code may need changing between major releases, data from previous versions will still be usable without the need to alter the data itself in the new release.[50][51]
  • Performance / Scalability: In 2006, performance tests between Drupal 4.x and Joomla 1.x branch demonstrated that Drupal's Web pages were delivered 44% slower compared with Joomla. To improve performance, Drupal offers caching to store static pages, the use of which resulted in a 508% improvement. Static pages are typically delivered to only anonymous visitors who have not logged in; contributed modules must be installed to allow page caching for authenticated users.[52] Thus, dramatic performance improvements from caching may not reflect real-world usage of a Drupal site.[53] Like performance, scalability, or the ability for a Web site to handle a growing number of concurrent visitors, can become a concern on large interactive sites. Scalability is typically improved by optimizations of the code.[citation needed] Particularly, SQL query caching can help offset the load to the database server caused by Drupal's high query rate.[54][55] Since version 6, Drupal caches database schema as well as elements such as blocks, forms and menus.[56] Development versions of Drupal 7 increase performance in database queries with simultaneous performance decreases in PHP code usage.[57]

Security

Since early in the project's history, Drupal has adopted a fully transparent policy towards security. A dedicated security team has a transparent and methodical process to review any reported issue—whether in Drupal core or contrib. If in core, a trusted core contributor is tasked to implement a fix in an expedited fashion, followed by re-review by the security team. If in contrib, the module maintainer is asked to implement the fix, followed by a review. Once obtained, the security team announces the nature of the vulnerability and the availability of the fixed code in a timely manner, so that site administrators can immediately take remedial action. Though this policy tends to lead observers to think that Drupal has a high number of security issues, there is no proof that this is the case; the Drupal project's transparent approach is generally considered superior to the alternative—security through obscurity.

As security holes are discovered and remedied, the Drupal core is updated to new versions. Administrators of Drupal sites are automatically notified of these new releases via the Update Status module.[29] Additionally, Drupal.org maintains a security announcement mailing list, a history of all security advisories,[58] a security team home page, and an RSS feed with the most recent security advisories. In 2008, eleven security vulnerabilities were reported and fixed in the Drupal core.[58] Security holes were also found and fixed in 64 of the 2243 user-contributed modules.[58][59]

Distributions

Customized Drupal distributions include some repackaged third-party modules, some with modifications to the core, including vbDrupal, which is Drupal integrated with vBulletin.

Drupal 4.2 [60] was used for DeanSpace, which hosted many independent websites supporting the 2004 U.S. presidential campaign of Howard Dean. After the Dean campaign ended, the DeanSpace project grew into CivicSpace, a Drupal-based "grassroots organizing platform that empowers collective action inside communities and cohesively connects remote groups of supporters."

Acquia

In 2007, a Drupal-focused company, Acquia, was created by Drupal project lead Dries Buytaert and Jay Batson. Acquia announced a subscription-based service for Drupal at Drupalcon Boston 2008 and started services with Acquia Drupal, a distribution based on Drupal 6, in September 2008. Subscriptions include one or more Drupal distributions, a set of companion network-supplied value-add services, and access to a Technical Assistance Center.[61]

OpenAtrium

Open Atrium, a Drupal distribution, is an intranet in a box that has group spaces to allow different teams to have their own conversations. It comes with six features - a blog, a wiki, a calendar, a to do list, a shoutbox, and a dashboard to manage it all. Official website: http://openatrium.com

OpenPublish

OpenPublish is a packaged distribution of Drupal, that has been tailored to the needs of today's online publishers. OpenPublish is intended for streamlined implementation of a variety of media outlets sites including magazines, newspapers, journals, trade publications, broadcast, wire service and membership publications. OpenPublish has advanced integration with OpenCalais and provides rich set of semantic features for the publishers. A number of high-profile publications are using OpenPublish, including: http://tnr.com and http://governing.com. Official website: http://openpublishapp.com

Tattler (app)

Tattler (app) is an open source topic monitoring tool for today's Web. Tattler finds and aggregates content from the Web on the topics you want. Using semantic Web technologies, Tattler mines news, websites, blogs, multimedia sites, and other social media like Twitter, to find mentions of the issues most relevant to a journalist, researcher, advocate or communications professional. Built and distributed on open source Drupal, Tattler's allows a user to easily filter, organize and share content gathered from the Web. Official website: http://tattlerapp.com

Ubercart

Ubercart is an exciting open source e-commerce package that fully integrates your online store with Drupal, the leading open source content management system. This is a killer combination for anyone looking to build a community around a product, sell access to premium content, offer paid file downloads, and much much more! Official website: http://www.ubercart.org/

Community

Drupal has a large community of users and developers. More than 550,000 user accounts have been created on Drupal.org, and more than 2000 people have signed up for developer accounts. The Drupal conference happens twice a year, alternating between North America and Europe.[62] Drupalcon Szeged 2008, held in late August 2008, had an attendance of 500. Drupalcon Washington DC 2009, attracted over 1400 people.[63] In September 2009, the conference was held in Paris, France, and in 2010 it will come to San Francisco.

There are a number of active Drupal forums, mailing lists and discussion groups. Drupal also maintains several IRC channels on the Freenode network.

There are over 20 national communities around drupal.org offering language-specific support.

See also

Notes

  1. ^ "Licensing FAQ". drupal.org. Retrieved 2009-04-08.
  2. ^ a b "The Drupal Overview". drupal.org. Retrieved 2009-04-08.
  3. ^ a b "System Requirements". drupal.org. Retrieved 2009-04-08.
  4. ^ Lincoln (2008-09-24). "45 Sites You May Not Have Known Were Drupal-Based". Social CMS Buzz. Retrieved 2009-04-08.
  5. ^ http://www.backendbattles.com/top-drupal-sites
  6. ^ http://www.google.com/hostednews/ap/article/ALeqM5iuRIVBTLUvW7823FC-fcfhvkSxHgD9BHLF180
  7. ^ [1]
  8. ^ [White House Web Site http://www.whitehouse.gov]
  9. ^ Wikipedia article on Web Application Frameworks], as of 2009-11-26
  10. ^ a b "Features". drupal.org. Retrieved 2009-04-08.
  11. ^ a b "History". drupal.org. Retrieved 2009-04-08.
  12. ^ "Druppel: Dutch to English Translation". Babylon Translation. Retrieved 2009-04-08.
  13. ^ Buytaert, Dries (2008). "Drupal Download Statistics". Retrieved 2009-04-08.
  14. ^ Buytaert, Dries (2007). "Drupal Download Statistics". Retrieved 2009-04-08.
  15. ^ Koenig, Josh. "Growth Graphs". Groups.Drupal. Retrieved 2009-04-08.
  16. ^ "Who is Using Drupal?". Us&V. Retrieved 2009-04-08.
  17. ^ "Drupal Project downloads". drupal.org. Retrieved 2009-09-16.
  18. ^ "OSS CMS Award Previous Winners". Packt Publishing. Retrieved 2009-04-08.
  19. ^ Drupal is a Webware 100 winner for the third year in a row
  20. ^ http://news.cnet.com/8301-13546_109-10237630-29.html?tag=mncol
  21. ^ http://buytaert.net/drupal-7-code-freeze-september-1st
  22. ^ http://drupal.org/node/156281
  23. ^ "View of /drupal/CHANGELOG.txt". drupal.org. Retrieved 2009-04-08.
  24. ^ a b "Handbook: Core Modules". drupal.org. Retrieved 2009-04-08.
  25. ^ Buytaert, Dries. "Garland, the new default core theme". drupal.org. Retrieved 2009-04-08.
  26. ^ "Color: Allows the user to change the color scheme of certain themes". drupal.org. Retrieved 2009-04-08.
  27. ^ "Translations". drupal.org. Retrieved 2009-04-08.
  28. ^ a b "Drupal 6.0 released". drupal.org. Retrieved 2009-04-08.
  29. ^ a b "Module: Update Status". drupal.org. Retrieved 2009-04-08.
  30. ^ "API Reference". drupal.org. Retrieved 2009-04-08.
  31. ^ "File and directory management". drupal.org.
  32. ^ "Do not hack core". drupal.org.
  33. ^ Integrating Drupal with External Systems
  34. ^ "Modules". drupal.org. Retrieved 2009-04-08.
  35. ^ Nash, Tim (2007-01-08). "CCK & Views the ultimate combination, part 1". The Venture Skills Blog. Retrieved 2009-04-08. Two modules particularly important to typical Drupal installations
  36. ^ Safuto, Robert (2007-07-30). "Drupal CCK and Views Tutorial". Awakened Voice Learning Center. Retrieved 2009-04-08.
  37. ^ "Field API". 2009. Retrieved 2009-05-08.
  38. ^ "PHPTemplate theme engine". drupal.org. Retrieved 2009-04-08.
  39. ^ "XTemplate theme engine". drupal.org. Retrieved 2009-04-08.
  40. ^ "How does Drupal compare to Mambo? discussion thread". drupal.org. 2005-01-17. Retrieved 2009-04-08.
  41. ^ a b Hagopian, Peter (2008-07-10). "Drupal Addresses Security In 6.3, Usability in 7". Information Week. Retrieved 2009-04-08.
  42. ^ Scollan, Becca (2008-05-01). "Drupal Usability Research Report" (PDF). Retrieved 2009-04-08. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  43. ^ Lal, Kieran (2008-06-26). "Drupal usability tests from the University of Baltimore with community solutions". drupal.org. Retrieved 2009-04-08.
  44. ^ a b Buytaert, Dries (2008-07-03). "Usability, usability, and usability". Retrieved 2009-04-08.
  45. ^ Buytaert, Dries (2008-03-10). "First results from usability testing". Retrieved 2009-04-08.
  46. ^ "Report from Formal Drupal" (PDF). 2008-03-03. Retrieved 2009-04-08.
  47. ^ Howard, Brian C. (2007-01-25). "Harnessing Drupal for Citizen Journalism". NewAssignment.Net. Retrieved 2009-04-08.
  48. ^ "CMS Review: Drupal". Live-CMS.com. Retrieved 2009-04-08.
  49. ^ Buytaert, Dries (2006-05-26). "Backward Compatibility". Retrieved 2009-04-08.
  50. ^ Buytaert, Dries (2006-07-27). "The pain before the pay-off". Retrieved 2009-04-08.
  51. ^ Drupal's Upgrade Instructions (end-user)
  52. ^ "Authenticated User Page Caching (Authcache)". drupal.org. Retrieved 2009-09-23.
  53. ^ Buytaert, Dries (2006-08-11). "Drupal vs [[Joomla!|Joomla]] performance". Retrieved 2009-05-20. {{cite web}}: URL–wikilink conflict (help)
  54. ^ "Speed up a Drupal web site by enabling MySQL query caching". nadeausoftware.com. 2007-03-07. Retrieved 2009-06-21.
  55. ^ Book on Drupal Performance & Scalability
  56. ^ "Caching in Drupal 6". drupal.org. 2008-07-28. Retrieved 2009-06-21.
  57. ^ "Drupal 6 vs Drupal 7 performance and comments vs nodes". CivicActions.com. 2009-05-19. Retrieved 2009-06-21.
  58. ^ a b c "Security advisories". drupal.org. Retrieved 2009-04-28.
  59. ^ "Contributed modules". drupal.org. Retrieved 2009-04-28.
  60. ^ "Predictions for 2004 discussion thread". drupal.org. Retrieved 2009-04-08.
  61. ^ "Acquia FAQ". Acquia. Retrieved 2009-04-08.
  62. ^ http://groups.drupal.org/node/17870
  63. ^ Bogle, Bonnie. "DrupalCon DC By the Numbers: Community, Profit, and Sustainability". drupalcon.org. Retrieved 2009-04-08.

Further reading

  • Douglass, Robert T. (2005). Building Online Communities With Drupal, phpBB, and WordPress. New York: Springer Verlag/Apress. ISBN 1-590-59562-9. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  • Graf, Hagen (2006). Drupal. Community-Websites entwickeln und verwalten mit dem Open Source-CMS (in German). Munich, Germany: Addison-Wesley. ISBN 3-827-32321-5.
  • Mercer, David (2006). Drupal: Creating Blogs, Forums, Portals, and Community Websites. Birmingham, England: Packt Publishing. ISBN 1-904-81180-9.
  • Peacock, Michael (2008). Selling Online with Drupal e-Commerce. Birmingham, England: Packt Publishing. ISBN 978-1-847194-06-0.
  • Roswell, Marjorie (2009). Drupal 5 Views Recipes. Birmingham, England: Packt Publishing. ISBN 978-1847196965.
  • Shreves, Ric (2007). Drupal 5 Themes. Birmingham, England: Packt Publishing. ISBN 1-847-19182-7.
  • VanDyk, John K. (2007). Pro Drupal Development. New York: Springer Verlag/Apress. ISBN 1-590-59755-9. {{cite book}}: Unknown parameter |coauthor= ignored (|author= suggested) (help)
  • VanDyk, John K. (2008). Pro Drupal Development, Second Edition. New York: Springer Verlag/Apress. ISBN 1-430-20989-5.
  • Herremans, D. (2009). Drupal 6: Ultimate Community Site Guide. Switzerland. ISBN 978-2-839-90490-2.{{cite book}}: CS1 maint: location missing publisher (link)
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