Join us for GridTalk on Tuesday when our special guest will be Jonathan Himoff of Rezzables, the company behind the Greenies and about 20 other of the most popular and innovative areas in Second Life. He'll talk about business, community building, and creativity in Second Life, as well as where his company gets those crazy ideas.

If you haven't visited Greenies yet, I envy you, because you get to see it with fresh eyes.

The premise is that you're a couple of inches tall and wandering around a giant living room that takes up a whole island. The living room has been taken over by tiny, green, playful aliens from another dimension -- the Greenies. There's a TV and a little kitchenette and a cat and a laptop computer and you can drive a shoe around. Great fun.

Other Rezzable areas have surfing and macabre themes -- the company has 36 sims, so there's quite a variety.

We'll talk to Jonathan -- known in Second Life as RightAsRain Rimbaud -- about the company's mission, how it got started -- and how it plans to make money off all this. Here's how to participate:

• In Second Life: Be there Tuesday, Oct. 30 (that's tomorrow) at 8 a.m. Second Life time/Pacific time at the amphitheater at Dr. Dobb's Island (SLURL).

• On The Web: Visit the Dr. Dobb's chatbridge, using Flash-enabled browser. You'll need to register first, if you haven't already. You'll be able to hear the audio of the session and use chat to participate in the discussion and ask questions. The form asks you to provide your Second Life name, but that's optional; just give the name you want to use in the text chat.