Playing mahjong online is a terrific way to sharpen your skills. It's also a great way to familiarize yourself with the NMJL card. The following sites offer the true version of American Mah Jongg. Most offer the option to play with bots (short for robots), great for new players OR playing with real people, great for experienced players. Best is.. you can even set up to play with people you know.  Visit each one to determine which is the best fit for you. You may never leave the house again!