I don't do a blog myself but I thought I would mention this new threat for those that do. I was reading the blog over at www.sewmanyways.blogspot.com. She has reported that people are stealing blog contents and moving it onto their own page. She has a report on "How to truncate your blog" so that your blog will be safe.
Forgot to add that I imagine the blogs on QB are safe, I think this applies to individual blogs on the net.