Actually, the government tried to shut down online gambling to US players back in 2006. So it’s been quite awhile since the law has been around. Basically the US has been targeting banks and money transferring systems based online. For instance, Neteller used to be a huge service for depositing funds into your favorite online casino and one of the most popular services to use.
After the US anti-gaming laws were put in place, Neteller immediately banned US players from transferring money to casinos and getting money out. Basically people had to use other less known services, which still are effective in getting money deposited so players can play casino games. Also, there are quite a few online casinos that still allow US players to gamble and deposit money. In fact, people can still put money into these places with a credit card or the more well known services. This makes it much easier and quicker to gamble online.
For example, CasinoMax and Cherry Jackpot