OpenDNS earns $ 20 thousand per day

Free service OpenDNS specializes in filtering network traffic. It was launched in mid-2006 as a tool to protect users from phishing and other "bad" sites (gambling, pornography, etc., there are fifty categories from which to choose). You register the IP address in the DNS settings and you can never remember its existence. At the same time, all requests from this point will pass through it. If you try to download any of the prohibited sites, then instead of it in the browser will appear a page from OpenDNS with search results and contextual advertising.

In less than two years of its existence, OpenDNS has become an extremely popular service, especially among corporate clients and educational institutions. Every day it processes about 7 billion DNS queries and shows 2 million search pages. Only registered accounts are 500 thousand, but thousands of real users can hide behind each account.

It turns out that OpenDNS brings a lot of money to its creators: they receive about $ 20,000 per day due to contextual advertising, and Yahoo is the exclusive advertising provider. No OpenDNS service is provided for money, everything is absolutely free. The replenishment and updating of the base of “malicious” sites is carried out with the help of the users themselves through a Digg-like interface.
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via TechCrunch