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Stack Overflow generates revenue, how?

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migrated from Sep 11 '10 at 11:58

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marked as duplicate by Shog9 Mar 6 at 0:25

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I would imagine that most of the revenue comes from advertising. There are adverts displayed on most pages and some tags are also sponsored.

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OK. I'm kinda new here, but I haven't seen a single advert yet. –  Jeff Jan 8 '12 at 4:34
That's actually what set me off looking for this question, @Jeff -- I didn't see any adverts either, and I was curious how they ran the servers without making money. –  RonLugge Jul 3 '12 at 22:16
There is no advertising at SO. –  davidkonrad Mar 6 at 0:33
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Some revenue comes from referral sales (sorry, don't know the exact term). Some book titles are converted to amazon links (not sure manually or automagically, though I would assume the latter). Example page is here:

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