Gambling online in the US

According to a recent article in the WallStreet Journal, there is pending legislation that will make it illegal to bet online if you are a US citizen. This will have major impact on some of the big Poker sites such as PartyPoker. Most of these sites are located outside of the US and privately held companies. But for about a 100 or so public gaming sites, they will have to set up rules that will not allow them to accept bets from US citizens. Approx. 60% of these sites revenue come from US bets, so this could be major problem for those whose clients are mainly from the US.