Google AdSense Updates:
Google AdSense: What's New

4 New AdSense Languages:
Danish, Finnish, Norwegian, and Swedish

Google WebSearch:
The free Google site search now also pays. When people click on ads in your site leve search or web search from your site Google splits the revenue with you.

I am curious to see if this will cause an increase in fraud since many sites which are not in expensive categories may have friends (or enemies) perform expensive fraudulent searches from their sites. This is a rather bold move by Google.

New Ad Format:
The new half banner is a 234x60 horizontal banner, available for text ad units.

More Channels:
You can now create up to 50 active channels for each of AdSense and WebSearch, for a total of 100 channels across your site.

Google AdSense Preview Tool:
The AdSense preview tool is an exciting new tool that's loaded with features. Use it to preview the ads that would appear on any web page, from a number of geographic regions. Test out color combinations. Click through to advertiser sites without generating invalid clicks, and easily add their URLs to your URL filter list.

The AdSense preview tool is a new right click option which will show you the ads that would appear on any given page, even from different geographic locations. More info on the new Google AdSense preview tool.