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.

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.