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This is a guest post by Aseem Kishore, a technology enthusiast and lead blogger for Online-Tech-Tips.

Adroll.com is not just another ad network, it's a social ad network. There's a difference. Adroll is betting that by allowing niche publishers to organize themselves together into communities with similar interests they will be able to be able to better attract advertisers by combining their traffic. This is an example of making money on the long tail, something Alex Iskold recently noted was the only effective way to make money involving the long tail. Adroll was founded by one of the members of the so-called "Paypal mafia," Jared Kopf, who is also a co-founder of Slide.