Any marketer exploring the nascent medium of virtual worlds and 3D social environments already knows the only certain thing is that they?re growing every day. Experiential marketplaces, such as Second Life and Whyville, each have members totaling into the millions. And they?re getting attention from marketers eager to reach all those eyeballs.

But this space is essentially at the same point that ecommerce or banner ads were circa 1994. And, despite the media ballyhoo that virtual worlds have received in the past year, the truth of the matter is that they?re still so new people don't know what to expect.

Navigating through these virtual worlds can be tricky. MarketingSherpa has five recommendations from marketing and virtual guru Wayne Porter for those interested in getting into this space.

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