Stephen Barrett of Quackwatch is being sued by Doctor's Data. You can read all about the suit directly at Quackwatch, as well as reading Orac's take on it. If you'd like to contribute to Barrett's defense fund, you can do so here.
Other bloggers speaking up on Barrett's defense are listed below.
Silenced By Age of Autism
Woo Fighters (another group using a similar name to the one we, the merry band of woo fighters, began using last summer-- you can never have enough woo fighters!)
ICBS Everywhere (blogger who posted on the above Woo Fighters site)
If you run across other bloggers supporting Stephen Barrett, let me know and I'll add them to the list.