When you register your blog with Technorati, you must choose 1-3 preselected categories to describe it.
There are special categories for "Anime" and "Hockey" but none for "History" or "Biography" or even a vague "Social Sciences." Or for that matter, "Education." My blog is pure history/biography. I wound up choosing "Home" (I do talk about Thomas Jefferson's home life and sneak in a recipe now and then), U.S. Politics" (even though this is completely about the years after he retired from politics), and "Celeb" (even though most people would understand that to mean gossip about living or recently dead celebrities, rather than serious biography about founding fathers).
What they don't tell you is that after you fill out the first part, you've got to go back to your profile, and under "My Claimed Blogs" click "Check Claim." Since you've just been told your status is being processed, so there seems to be no reason to check it. Good thing I got curious. It takes you to a page with a code you have to insert into a post. Yep, a silly , distracting, confusing, random string of letters and numbers to put up before your public audience. It's especially glaring in a blog like the one I was registering, which is built on the conceit that it was written 200 years ago. Really messes up the mood.
O.k. So I finally gave in. Got a Twitter account. Sold my soul for a couple of course credits. Not that I had anything specifically against Twitter, but I have enough trouble keeping my Facebook status reasonably up to date. I HAVE NOTHING TO SAY. Certainly nothing that fits into 140 characters. Yes, it's because I have no "life." Not an interesting life (i.e., no adventure, no wild sex -- I've been married 25+ years), anyway. The interesting stuff is in my imagination, and takes more than 140 characters to explain.