According to JenSense, Google is experimenting with interstitials (watch an ad for 10 seconds before seeing content), expanding ads, floating ads and popups.
Google has certainly come a long way since it proclaimed that text advertising which does not distract the user works much better than graphic ads and popups.
Google is also making a practise of bundling software (Google Toolbar is included with programs such as Winzip). Google are also releasing all kinds of new pointless software (Google Video Store is even worse than iTunes) and have agreed to censor search results in China.
It seems like Google is giving up something which makes them different from other companies every day. In fact, I wouldn’t be surprised if a significant number of people started to claim that Microsoft do less evil than Google.