Google is inviting Gmail users in the US and UK to participate in the testing of Gmail Labs. Launched today, the latest Google service brings a list of experimental new features that will eventually become part of Gmail. Gmail Labs is available now through the Settings/Labs page of your Gmail box.

The result of this loosely-directed chaos is 13 Labs features, with more on the way. Some of them we've found really useful, like Quick Links, which lets you save searches and any other views in Gmail. Kai and Julie wrote Superstars, which gives you different types of stars. Dave wrote Old Snakey, which lets you play an old school style computer game when you press "&". I'm just going to go out and say it: Old Snakey is probably a bad idea. But Dave wanted to do it, so Dave did it and anyone who uses Gmail can use it. And now you can help decide whether it's a good idea. That's the kind of thing that makes a project fun to work on.