Just happened upon www.twittfriends.com today. Cool site that allows you to log in with your Twitter credentials and search the folks you follow & see who they follow in common with you.
While I like that functionality & think it’s cool, I’d actually love them to take it a step further & have a search box where you could put someone’s Twitter username in & search for common friends at that point – before you follow them.
Often it seems like folks follow you that you don’t know & you also have no idea where they found you. While that’s the case with nearly everybody if you’re a Chris Brogan or a Gary Vaynerchuck, I’d love to know where they came from & what you might have in common. When trying to figure this out, I often go & look at who they follow & who is following them – a major pain when trying to do manually. Seeing common connections sometimes helps to deduce why they might have connected with you.