Media placement for brands is increasingly ingenious and even in the most unlikely locations we may now see an ad for some product or other.

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The most promising untapped area of social media marketing is social media product placement, which creates endorsed impressions.

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If Foursquare can subtly create brand associations and social media product placement in a non-obtrusive way, it may stand a chance, but to do so requires an OODA loop running at a much faster pace with a more diverse view of the marketplace.

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But Mary-Lou Galician, head of media analysis and criticism at the Walter Cronkite School of Journalism and Mass Communication at Arizona State University and editor of The Handbook of Product Placement in the Mass Media, is not so sure its working.

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My expertise in the marketing and sales recruiting arena has led KAS Placement to gain unparalleled exposure, including in media outlets such as CBS MoneyWatch, About.com, Monster.com, Huffington Post, AOL Jobs, MTV, Fox Business News, Wall Street Journal, FINS Sales Careers, O Magazine, Interviewing.com and many others.

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Earned media, meaning people sharing on their own with their own social networks versus a paid placement.

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Last weekend, Goldman was forced to make an about-face on its original plan to make the private placement available to its U.S. clients, too, because Goldman said intense media spotlight about the deal left it in danger of violating U.S. securities laws.

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