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Adam Trachtenberg is the Director of the LinkedIn Developer Network, where he oversees developer relations and marketing for the LinkedIn Platform. Before LinkedIn, Adam worked at eBay in platform product management and marketing. Even earlier, he co-founded Student.Com and TVGrid.com. Adam is the author of PHP Cookbook and Upgrading to PHP 5. He lives in San Francisco.

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We buy lots of ads

I’ve always known that eBay buys lots of pay-per-click ads, but here are the numbers to prove it.

Not only is eBay #1 by a long margin, we just closed the deal last month to buy up #2 Shopping.com. Combined we buy over 5x more than the next closest company, IAC. That’s a lot of ads.

(The standard disclaimer applies: everything in this post only applies to the public data from Nielsen/NetRatings. I have no knowledge if what they provide is accurate in any shape or form.)

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