Twit Or Fit launches today – effectively an idea borne of combining Twitter with a site like Hot Or Not, where you rate the appearance of people displayed. HotOrNot was recently sold for a rumored $20 million, but since TwitOrFit relies on Twitter and therefore has little inherent intellectual property, I somehow doubt it will attract a similar valuation. However, it is already doing a lot of traffic and the US – Twitter’s biggest market outside Japan – is only just waking up right now. (The site is coming out of the UK, where Twit is slang for fool and Fit means good-looking).