I have added WebFinger support to Ident Engine. You can now enter a Google gmail email address as a starting point for searching someone social graph. This only works for email accounts who’s users have published a public Google profile page.
Google’s profile pages are a good starting point to search the social graph. Google have design the profile entry to encourage user to build strong “elsewhere on the web” list of their other profiles pages across the web. These links are then marked-up with rel=”me”
I used DeWitt Clinton WebFinger client which has a good JSON API.
http://tinyurl.com/yjrg9gt
