Now, my grandmother has been into genealogy all her life, and has traced her family back, way back...I think she's damn near to the monkeys by now. Thus, I happen to know a lot about my own history, which is actually kinda cool; just knowing some of the people I can trace my bloodlines through is fun.
Anyway, even though the site's pretty shallow (as it would have to be, the sheer amount of data that would have to be accessible to make it legit is staggering, to say the least), it's kinda cool. So, if you happen to be of relatively European stock, it might be fun to look it up, just to see what they say.
For me, I looked up both my own surname and that of my mother. Pretty cool, overall...glad to see they actually got the Scottish clans correct, on Mom's side.
Interesting...both have similar colour schemes, which I did not expect. Also interesting that they trace the Prevatt name back to Welsh origins, but I have always been under the impression that it was of French descent (I have no actual genealogical research on Dad's side, I'm afraid).