There is a cool new tool (maplight.org) in the internets that highlights the flow of money to politicians (tied to specific legislation). See an example here for HR 1207: The Link
Well, we've known for quite some time now that our elected officials are for sale to the highest bidder. If these #'s are correct (and I have no reason to believe they're not), then this web site is basically the ledger book. Again, if these #'s are correct, this is the kind of transparency that we need and should demand.