I LOVE this article, found it yesterday. It echoes my belief that most people launch into blogging and will stop (pretty quickly).
Their stats are that 95% of blogs are abandoned within 120 days. 60-80% in the first month.
Well I can bore you to death or you can read it here.
If you're wondering whether to bother clicking, the very funny Blog Lifecycle is worth it!
Your Web-Blog-Marketing-Twitter-Google Guy