Click on Play bridge now. You will need to sign up with a userid and password. There is a web version or you can download a separate program that loads on a PC but not on a Mac. If you need help email email@example.com. You can also watch matches between the World's top bridge players under Vugraph.
Fun informative web page.
If you join bridgewinners and it is free. They have a couple of online games that help your game. They include things like counting the distribution of a hand quickly