David Weinberger (born 1950) is an American technologist, professional speaker, and commentator, probably best known as co-author of the Cluetrain Manifesto (originally a website, and eventually a book, which has been described as "a primer on Internet marketing" ). Weinberger's work focuses on how the Internet is changing human relationships, communication, and society.
A philosopher by training, he holds a Ph.D. from the University of Toronto and taught college from 1980-1986. He was a gag writer for the comic strip "Inside Woody Allen" from 1976-1983. He became a marketing consultant and executive at several high-tech companies, and currently serves as a fellow at the Berkman Center for Internet and Society at Harvard Law School, where he co-teaches a class on "The Web Difference" with John Palfrey. In addition, he is Co-Director of the Harvard Library Innovation Lab at Harvard Law School. He had the title Senior Internet Advisor to Howard Dean's 2004 presidential campaign, and provided technology policy advice to John Edwards' 2008 presidential campaign.
He is the author of several books including The Cluetrain Manifesto, Small Pieces Loosely Joined: A Unified Theory of the Web, Everything is Miscellaneous: The Power of the New Digital Disorder and 2012 Too Big to Know: Rethinking Knowledge Now That the Facts Aren't the Facts, Experts Are Everywhere, and the Smartest Person in the Room Is the Room.
Other works 
- World of Ends, What the Internet Is and How to Stop Mistaking It for Something Else (with Doc Searls), See NEA (internet)
- Gold Stars Speakers Bureau - David Weinberger
- Netwatch. (April 15, 1999) Guardian Unlimited
- On the Move: Web philosopher finds a thrill in evolving medium
- "The Harvard Library Innovation Laboratory". Retrieved 2012-07-16.
- Susan Bratton. "Interview with David Weinberger". PLM. Retrieved 2007-11-21.
- Weinberger, David; Locke, Christopher; Doc Searls (2000). The Cluetrain Manifesto. ft com. ISBN 0-273-65023-8.
- Weinberger, David (2002). Small pieces loosely joined: a unified theory of the Web. Cambridge, Mass: Perseus. ISBN 0-7382-0543-5.
- Weinberger, David (2007). Everything is miscellaneous: the power of the new digital disorder. New York: Times Books. ISBN 0-8050-8043-0.
- Weinberger, David (2012). Too Big to Know: Rethinking Knowledge Now That the Facts Aren't the Facts, Experts Are Everywhere, and the Smartest Person in the Room Is the Room. New York: Basic Books. ISBN 0-465-02142-5.
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- Home page
- Harvard/Berkman Center page
- Weinberger on his book Weinberger discusses Everything Is Miscellaneous on EconTalk
- Podcast Interview at MFG Innovationcast (starting minute 11:10)
- Podcast Interview at CBC's Spark.
- Interview on 99FACES.tv about ´The Cluetrain Manifesto´and ´Too Big To Know´