From weblogtoolscollection.com, You know you blog way too much when:

… you post the wrong article on the wrong blog.
… your family prefers to interact with you through your blogs.
… you met your girlfriend/boyfriend through a blog.
… your “blog community” is much, much larger than the number of people you know in real life.
… you consider yourself an “alternative journalist”.
… you start your day by checking your blog stats.
… a day without blogging seems like a month without food.
… your feedreader is open all day.
… you get more “approve this comment” email messages than spam.
… you know what RSS stands for and you know how weak the medium is.
… people worry about you when you do not post anything for a day.
… work is the little time you spend in between writing on your blog and IRC.
… my pagerank is bigger than yours!
… invalid XHTML is a bad word to you.
… you check your blogshares weekly, more than you check your savings account.
… you’ve gotten your parents to blog.
… your dog has her own page on Dogster and it gets updated!
… Kubrick is no longer just the legendary filmmaker
… you have to switch hosts to keep up with your bandwidth needs.
… you make more money from blogging than you do at your day job.