Unless, of course, we're willing to barter with something else, such as our consumer profiles or our photo streams.

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Essentially, she accuses these four of conspiring with Interclick to create consumer profiles and track unwitting Big Mac buyers and fantasy football fans and then target them with ads.

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The company has built millions of consumer profiles.

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If you haven't done so already, consider spending a few days or weeks familiarizing yourself with social-networking sites as a consumer before creating profiles on any for your business.

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Tracking in store purchase behavior will also enable brands with deeper insight of consumer preferences, augment social profiles and build more personal relationships.

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Once you can understand consumer preferences, record purchases, and keep track of sizing and fit profiles, it becomes possible to better predict what someone will be most likely to buy in the future.

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