Microsoft has also helped bankroll groups like FairSearch.org, a coalition of technology companies opposed to Google.

WSJ: Behind Google's Antitrust Escape

On its mobile iOS operating system, Apple has created a "closed garden" environment in which everything from apps to accessories has to be approved by Apple, as opposed to Google's more wide-open Android system.

CNN: Doug Gross,

But he raises the issue of self-monitoring in an interesting context that not a lot of people think about too deeply: the literal financial cost, as opposed to what Google considers the moral cost.

FORBES: Baidu, Google and the literal costs of self-censorship