Isn’t StumbleUpon wonderful? I have found so many good websites there, but this one at “Blog Law” has a very good article on 12 Important U.S. Laws Every Blogger Needs to Know.
I’m not a lawyer, even if I were, I cannot give advice about this kind of stuff, especially on its accuracy with regard to the laws where you are. Still, there are some legal minefields mentioned that you may want to avoid. New bloggers will probably be put off this kind of stuff, but once you’ve blogged for a while, you may want to read this! It covers 12 areas, including: disclosing paid posts, deep linking, IP, images, trademarks, privacy issues, spam laws, etc. While the issues and the legal complications will vary HUGELY from place to place, there are some general pieces of information that would likely apply to all users, and some suggestions that are just good common sense.
It’s worth a read. But print it out, if you are very concerned, and go talk to your laywer, as you will likely get accurate, pertinent and helpful information for where you live.