Does this cost Google any $$$?

You know that I have Google AdSense on my homepage and guess what?
Google's very own ad appears on my homepage and it's Google Chrome!
what's funny about it is that it appeared on my IBM laptop on which I just could not install it at all... I've tried millions of times.. However, I could get it work on some other computers... I have yet to try installing in WinXP on my mbp. Hope that works...

anyway, does this add cost Google and money?
well, i guess if it would, it goes back to its own account after all the internal transfers and stuff... at the macro level, money goes out and comes back... at the micros level, internal budget approval and transactions!

alright... i guess Google has built a world largest Ad network and guess what... Google has already started to advertise for its own products... soon, it will rule more... ha ha...

Cool stuff!!!