Presenting you with their online social dossier as it were.
You could make it more powerful for business users and charge them for more indepth spidering of a person.
Sure, prolly a few iterations before you could do it to such a degree - but if youre not doing this, then who will be in your place? There has to be something like this out there already.
>>Imagine hooking this up as a caller ID of sorts, you get an email, a text or a call from someone - and your engine goes and crawls all your social networks and contacts and pulls up whatever relational info it can find on the person.>>
Rapportive (and few others) provides you with this info.- when you get an email from someone. If I understand correctly, then you're suggesting Rapportive++ ..??