Knol was a Google project that aimed to include user-written articles on a range of topics. The project was led by Udi Manber of Google, announced December 13, 2007, and was opened in beta to the public on July 23, 2008 with a few hundred articles mostly in the health and medical field. Some Knol pages were opinion papers of one or more authors, and others described products for sale. Some articles were how-to articles or explained product use. Other people could post comments below an article, such as to refute opinions or reject product claims.

Lower-case, the term knol, which Google defined as a "unit of knowledge", referred to an article in the project. Several experts saw Knol as Google's attempt to compete with Wikipedia, while others pointed out the differences between the projects.

On January 16, 2009, Google announced that Knol had grown to 100,000 articles, and users from 197 countries visited Knol on an average day. Since then, the Public Library of Science (PLoS) Currents: Influenza and the Harvard University-sponsored forum for Healthcare Information Technology (HIT) Platform have utilized Knol-based collections for rapid exchange of research.

On November 22, 2011, Google announced that Knol was to be phased out in favor of Annotum. It was closed on April 30, 2012, and all content was deleted by October 1, 2012.

Read more about Knol:  Content, Process, Closure, See Also

Other articles related to "knol":

Knol Tate
... Knol Tate is a musician, singer/song writer and poet hailing from Minnesota's Twin Cities ... Knol is the older brother of drummer Erin Tate, formerly of Killsadie, now of Minus the Bear ... Tate also DJs at local Twin Cities clubs under the name DJ Knol Tate ...
Askeleton - History
... In 2000, Askeleton was founded during the breakup of Knol's former bands Kill Sadie and The Hidden Chord ... During 2000 and 2001 Knol made two records released in 2002 as the Sad Album full length CD (Minneapolis label Blood of the Young Records) and a CD/EP called Modern Fairy Tale (New York’s Alone Records) ... In order to promote these releases Knol assembled a band to play the songs live ...
Dutch National Road Race Championships - Women
1987 Mieke Havik Jolanda Cools-van Dongen Karin Schuitema 1988 Monique Knol Leontien van Moorsel Cyntha Lutke Schipholt 1989 Leontien van Moorsel Petra Groen Astrid Donkersloot 1990 Leontien van ...
Ruud Knol
... Ruud Knol (born 13 March 1981) is a Dutch football centre back who currently plays for Sparta Rotterdam in the Dutch second division ... Knol was born in Zevenaar, in the province of Gelderland and started his career at OBW Zevenaar, where he was spotted by Vitesse scouts ...