Knol is a Google service that lets people share knowledge. Many refer to Knol as
Google's version of Wikipedia. The Knol project consists of user-written
articles on a range of topics. Contributors can write and publish any number of
Knols on the same or different topic. Readers with Google accounts can rate,
comment on, or suggest edits to the Knols, similar to blog comments.
See also "Google
Products and Services" in the
Quick Reference section of Webopedia.