Google has started a new product called
Knol.
A knol is supposed to be an authoritative article about a specific topic, written by people who know those subjects. You can read Google’s announcement of it on their blog. It seems to be in competition with Wikipedia (as well as other information outlets such as blogs), and Google has the advantage over Wiki because the Knol is ranking very well in Google’s search results (surprise!). When you go looking for an article by searching Google, expect to start seeing the Knol more frequently.