I have something like six Google accounts and a couple of Yahoo accounts and a LiveJournal account and three Twitter accounts and a Facebook account and a bunch

I have something like six Google accounts and a couple of Yahoo accounts and a LiveJournal account and three Twitter accounts and a Facebook account and a bunch of other things that come with OpenIDs. What I don't have is any idea what OpenID I'm supposed to be using for any given service. I've tried to just pick one, but the other thing I don't have is a desire to share my login history with any of the above sites, or to link my identity on any of those sites with my identity on New Fly-By-Night Site X without at least trying out Site X, and possibly checking its references too. Something I do have is an automated workflow for handling usernames and passwords.