[Wikipedia-l] Knol

[cohesion]

"Earlier this week, we started inviting a selected group of people to
try a new, free tool that we are calling "knol", which stands for a
unit of knowledge. Our goal is to encourage people who know a
particular subject to write an authoritative article about it. The
tool is still in development and this is just the first phase of
testing. For now, using it is by invitation only. But we wanted to
share with everyone the basic premises and goals behind this project."