SharkLaser writes "Last week it was announced that Google has renewed their search deal with Mozilla. The amount Google paid to Mozilla was surprising: $300 million per year, despite the slightly falling market share of Firefox. Many took this as charity, and for the purpose of advancing the web. Now sources in the bidding process have revealed that Google's main rival in the bid was Microsoft's Bing, along with Yahoo. This bidding war was costly to Google, which is now paying 300% of what they used to, just to be Firefox's default search provider. Mozilla veteran Asa Dotzler is also giving insight into the deal between Google and Mozilla. 'Google started out as a search company. But that's not what they are today. Google's primary business is advertising. Google brought in $9.7B in revenues in Q3'11. 96% of that revenue was from ad sales. Not all traffic to Google ads is 'organic' though. To help drive ad sales, Google pays for traffic to their ads. They paid out $2.21 billion, or 24% of their ad revenues in 'Traffic Acquisition Costs.' That money goes to revenue shares with their AdSense partners and to 'distribution partners' — presumably browser makers, PC OEMs, and mobile OEMs and operators.' Google also pays shareware and freeware distributors to bundle Chrome and Google toolbar with their programs and games."