I'm afraid some folks' recollection of history is a bit flawed. Netscape was all but dead when AOL bought it, which they did for the brand name value alone. The Netscape browser marketshare was down to about 24% by mid 1999 when AOL bought it—which they did for the brand name value and the customer data, not the actual software (which was open sourced by then and run by Mozilla).
That being said, the idea of "trusting" Google with personal data is about as comical as it gets, IMO. And I agree with +Robert Stiles
that it's bad for any corporation to have as much info as Google does.