Gigaom’s Alistair Croll has written a post on Google’s Lively, and in doing so offers a intriguing proposition – the possibility of Google as a realtor (or estate agent depending on which side of the Atlantic you happen to reside).

Although Lively, as Alistair points out, enters a market that is seemingly flooded leaving its only real differential being that it’s a Google baby, there are possibilities. Especially when the Google well studded stable is considered.

Primarily there is advertising, Lively offers wall space. A space that can support social advertising, generally a medium that is considered more effective than the regular chaff one must traverse on a daily basis. Alistair also mentions the ability to purchase via Googlebase and Checkout, but it is Google Earth and SketchUp that are getting his cogs whirring.

Combining the two, as many have already done, the selling of virtual real estate (an interesting oxymoron of feasibility) is not a massive leap away. The scenario used to illustrate the situation by Alistair, involving Trump Tower, may be a little flippant, but gives you the idea.

So what are we to take away from this? Lively may not be the most incisive thing Google have ever done, but united with an advertising model and Google Earth, it could become a holy trinity of cash for the interweb giant…