Ad Age covers Microsoft's roll-out of Bing, its new Search Engine at:
http://adage.com/digital/article?article_id=136847

Here's the post:

Microsoft Aims Big Guns at Google, Asks Consumers to Rethink Search
Here's Why an $80M Ad Effort for a Search Engine, Bing, Makes Some Sense
by Abbey Klaassen
Published: May 25, 2009

NEW YORK (AdAge.com) -- Microsoft has used attack ads to go after Apple, and now it has Google in its sights.