If you've ever copied an excerpt from an online publication and pasted it in a public place on the Internet, you're a bit safer today from being sued for copyright infringement thanks to the Democratic Underground.
http://www.pcworld.com/article/244344/publisher_drops_copyright_claim_favors_fair_use.html
http://www.pcworld.com/article/244344/publisher_drops_copyright_claim_favors_fair_use.html