So as far as I knew the twitter doesn’t share a users e-mail in the twitter api.
Reference http://code.google.com/p/twitter-api/issues/detail?id=353
However I’ve run into multiple products recently that seem to be able to retrieve a user e-mail. connect.me is an example of one that upon sign up with twitter they suddenly have my e-mail.
fullcontact.com I can put in a work related email address and suddenly they know my personal twitter account.
Anyone have any idea how they are doing this. It seems to break the twitter privacy policy, but if it is allowed I know tons of devs that would love to have access to the feature.
After chatting with some of the twitter devs I’ve found the connect.me incident was simply my own browser making me look stupid with an auto-fill.
Full-Contact does appear to be doing simple record matching and mining from it’s users to expand it’s data.