To keep track of business contacts, I use Linkedin.com, so we could call this platform a CMDB.
These last years, by using Twitter and BMC Communities, I have met very interesting people (and I've learnt a lot from them).
Many of them are now linkedin connections
So I definitely used 2 discovery solutions to feed my "CMDB". And given that in Social Media, "information comes to you", it was kind of automated (except from spammers, I was not contacted by people who share no interest with me).
Actually, other people I've met on these platforms are now Facebook friends.
Is it where the analogy stops ?
Having 2 CMDBs is non-sense.
So we have 2 datasources, and we need an overarching CMDB, with some federated approach.
What could give a cross-platform (Linkedin and Facebook) view ?
When I googled this, I actually found a Question on Quora (that you can use by using your Twitter or Facebook authentication - Social Media world is kind of recursive )
I'll stop before creating an infinite loop (that can cause memory leaks and crash )