Ancestry.com

We have all seen the TV ads - what are Ancestry.com all about?

The emphasis seems to be building a family tree that you can share (boast) with your friends

Vanity of just curiousity?

I actually don't really understand.

I can sort of see why there would be interest in your families past, but does it really matter. Recent relatives and the fact that you may have a genetic trait that you should know about could be important but I don't think that this is the prime reason.