Google just hired an advocate for game developers. This follows Apple’s opening of a Game Center.

Both companies have witnessed the success of social gaming on Facebook and want to promote game development for their products as well.

The new Google hire, Mark DeLoura, a games industry veteran, suggests that “Clearly there are a number of initiatives going on at Google that can relate to games in some way” (read Android and OpenSocial).

It has been suggested that Apple’s Game Center is an attempt to compete with Facebook’s dominance over the hugely popular and incredibly lucrative area of social gaming.

What we are witnessing is the leading edge of the trend to use gaming to sell or support consumer goods.

Apple and Google know that an engaging or addictive game application can ring a cash register, if applied correctly. Active gamers use hardware to facilitate the fun, so creating games for iPads and Androids will build demand for these products.

But the real winners of this online gaming trend could be e-Retailers…. So Amazon and Ebay should be paying attention to this trend!

Consider the value to Amazon of games that resulted in the sale of a variety of consumer goods….

Do you think Ebay would want to hire a Game Developer Advocate if it meant more sales for their merchants?

Google and Apple are investing in the minds and hearts of game developers and game enthusiasts. Maybe Amazon and Ebay should take a page from this game plan.