This doesn't actually find almost anyone's email address, by the way. A quick search through my employer's database finds five Mark Smiths. None of them appear

This doesn't actually find almost anyone's email address, by the way. A quick search through my employer's database finds five Mark Smiths. None of them appear to have their social networking profiles linked. Knowing the <firstname, lastname, company> tuple does not uniquely identify any particular Mr. Smith, and rapportive gives no clues. This is especially true for gmail. I have three gmail addresses, and none of them can be guessed by combining my names in creative ways (not because I'm paranoid, but because I have never used gmail as my primary address, so I signed up late enough that nathanb@gmail, et al, were long gone). You will find many people with my exact <firstname, lastname> combination (I even know one personally, so <firstname, lastname, city> is equally ambiguous). While this is an interesting approach (and is probably useful for finding the email addresses of execs, tech leaders, and people with creative names), it falls far short of the promised "finding almost anyone's email address".