Deliberately click on links that make it hard for the personalization engines to pigeonhole you. Make yourself difficult to stereotype.
Erase your browser history and cookies from time to time.
Use an "incognito" window for exploring content you don't want too much of later.
Use Twitter instead of Facebook for news. (Twitter doesn't personalize.)
Unblock the Status Updates of your friends that Facebook has already blocked. Click the "Edit Options" link at the bottom of your Facebook News Feed. The dialog box will show you who is being blocked. You can hide or un-hide each friend manually, or unblock everybody. This dialog box affects only what comes from friends to you. It does not affect what your friends see of your posts.
Every week or so, post something and then ask the Facebook friends you really care about to go "Like," comment and click. This activity should prevent Facebook from censoring your comments later for these people.
