Join the EFF
There's a blogger fund drive going on for the EFF right now, and it was a good excuse for me to re-join. They have some great legal guides for Bloggers at the bottom of the EFF Bloggers page. And they're continually working on important legal issues for the Web. If you can't donate right now, tune into their EFFector Newsletter to get a sense of what they're working on. I've been on the list for years, and it's a great way to stay on top of news related to freedom and privacy online.