At Google, Sr. SWE makes about $155K if female, about $180K if male. Base salary. Bonuses and refresher grants are also skewed accordingly. These are 2011 numbers, personally researched.
From what I've seen, as an outsider with a lot of friends that work at and/or have interviewed at Google, they seem to have some serious issues with sexisim, issues that go beyond a pay gap. They are trying, but man, they are not doing so well, and they are losing out on talent because of it.
She is now being passed up by people visiting her team's cube to ask about things regarding the service. Their default response is to go ask the guys in the cube instead.
"Welcome to my world", I said.