Okay, profile updated. Copying the old one out to a text editor and tweaking it took a few minutes. Copying it back to Dreamwidth took a few seconds. Copying it to Blurty, IJ, DJ, JF, Scribbld, and LJ took several more minutes, mostly for logging into each site and making tiny site-specific edits for a couple of 'em. Twitter, another couple of seconds. Facebook ... oy vey. Hours, literally hours, most of which was spent working in other windows while waiting for the FB user interface to catch up to my last few keystrokes, and most of the keystrokes were for undoing the crap FB had done to what I pasted when I pasted it.
Now to try to find my Linkedin password, and see what I currently have in my profile on Flickr, Shutterchance, DKos (I think I have a login there), Pinterest, HuffPo (I don't remember whether I have a login there or not), Slashdot ... come to think of it, maybe I'd better just go through my passwords file to look up all the places I might have a profile that I've completely forgotten about!
(One of the things I really like about OpenID is that instead of creating a new account, new login, new password, new profile to keep updated, new message board to remember to check, etc., I can just say, "I'm me from over there," and not have to worry about a New Identity just to visit a new place.)