According to Red Herring / via Shankar Gupta on Online Media Daily (19-Feb-2007)
"Google has agreed to purchase in-game ad firm Adscape for $23 million, according to a report late last week in Red Herring. With the acquisition, Google will be following one of its major competitors, Microsoft, into the in-game ad space. Last year, Microsoft acquired in-game ad firm Massive Incorporated ..." more
The Adscape doesn't deliver advertising yet, but has the technology Google wants, because they care about their clients advertising money ... (e.g. Newspaper, Radio, Magazine, ..).
See also ZDNet
Earlier posts:
Nachsitzen für Printverleger
AOL - Google To Explore Selling TV, Print Ads