In February, I posted a Legal Guide For Bloggers that is currently the #1 match on Google for the phrase “legal guide for bloggers” (update a few hours later: that link has already fallen to last on the page of search results! Google works fast!). That’s not likely to continue to be the case now that the EFF has published:
EFF: Legal Guide for Bloggers
In my posting, I had collected up a bunch of links to good resources if you find yourself at the wrong end of a Cease and Desist (is there a right end?). The EFF’s guide is very in-depth and will likely cover any questions you may have. That’s the place to go if you run into trouble.