One of the great things about Bitcoin, is that there is no way two reliablely produce a top 100 richest list.
EDIT: the top 100 richest list you have on your site could all be owned by the same person, or could all be owned by persons who are very far from the top 100.
Yes all very true, I should add some notes or links somewhere to make it clearer for those who don't know all the bitcoins ins-and-outs. I'm wondering as well how this list will change in the next few days, if anyone seeing their address listed will feel the need to split their balances out into smaller amounts and accross several addresses.