OK, Blogs have definitely started going mainstream.
Friday night was the final round of Jeopardy's Tournament of Champions. I was surprised to see that one of the categories for Double Jeopardy was "Blogs." Here are screen caps of each of the "answers"...read it, think of the correct question ("Who is...", etc.) and then click to see if you are correct. They're pretty easy if you know what a blog is, and not too hard even if you don't.