Google opens knol

Google Opens Knol to the Public

Following months of testing, Google has now made its Knol product

available to everyone (http://knol.google.com). The Knol project is a

site that hosts many knols-units of knowledge- written about various

subjects. Knols are authoritative articles about specific topics,

written by people who know about those subjects. A feature called

"moderated collaboration" lets any reader make suggested edits to a knol, which the author may then choose to accept, reject, or modify before these contributions become visible to the public.

There appears to be alot of good material here.