[gkoberger]

Unfortunately, they're working: Microsoft wouldn't still be doing these after 2 years if they weren't.

EDIT: More info on the effectiveness of the ads (tl;dr: yes, they're changing perception) http://adage.com/article/digital/microsoft-s-google-bashing-...

[epistasis]

Not sure if you're being sarcastic or not... Microsoft will stick to a plan for years, even when it's not working.

[Pxtl]

Yep. You can Bing search numerous examples.