Microsoft has given some control of Xbox Live over to the average Joe and Jane. Community Games, made with XNA Studio development tools, are now available. These titlesaren't under the same restrictions as Xbox Live Arcade games and are generally made by independent developers, which means they don't have achievements or the requirements of Microsoft certification.
Where there are only one or two XBLA games released each week, there could be dozens of Community Games released in a single day. And all of them cost a little scratch. So how do you know which Community Games are worth a damn? Well, of course, you'll get by with a little help from your friends at IGN.