I also posted this link in the above referenced thread-
http://en.wikipedia.org/wiki/Fuel_ec...in_automobiles
Have you looked at KNOL, the newish Google wiki-like site? Sparse due to newness but the authorship rights, etc. seem interesting. I'm going to post some obscure tax related articles (COD income ,etc.) and see what happens.
http://knol.google.com/k#