Who Owns Your Weblog?

An anonymous reader asks: "If you're a weblogger, have you read the fine print of your employment agreement? Many webloggers are techies and many tech employers have highly restrictive IP clauses in their employment contracts - the employers owns you and everything you do whether at work or at home or anywhere else. Are you sure you own your weblog? You may not be allowed to take it with you when you change jobs." As always, please remember to look over those employment contracts before you sign. With that point mentioned however, are employers still likely to employ someone who is willing to argue points on their contract, especially in this economic climate?