It was just last week that the Wall Street Journal reported Microsoft's decision to limit private browsing in IE8 as part of its ongoing series on online privacy, and today the focus is on Google, which is said be "agonizing" over the balance between user privacy and advertising opportunities. It's a long piece that you should read in full, but essentially the WSJ claims that Larry Page and Sergey Brin have gone from strictly forbidding any efforts to track users online to a more subtle interpretation of their famous "don't be evil" motto which allows them to leverage user data and sell finely targeted ads without "exploiting cus