This is a linkpost for http://lesserwrong.com/
It doesn't seem to be working for me; I tried to reset my password, and it keeps saying "user not found", although I doublechecked and it is the same email I have on my account here on lesswrong.
We have a copy of the database from 3 months ago (will be updating to a more recent one on launch), but this means that if you added an email to your account later than that we might not have it.