Google is creating an articles knowledge-base it calls "Knol". Google describes it here: Encouraging people to contribute knowledge.
I use the online encyclopedia Wikipedia quite frequently, and I find it very useful. Knol is planned to compete with Wikipedia by storing units of knowledge Google calls "knols".
Knol is in pre-release, so I cannot comment on its content. However, I will comment on Google's units of knowledge term "knol":
1. KNOL is the NASDAQ symbol for Knology, Inc an advanced broadband communications services provider. Why reuse a NASDAQ symbol in another context?
2. I suggest improving it by changing it to "knowl".
Here's my original SETI research