Changes in Text ads format

Google has changed text ads to help reduce accidental clicks. Earlier, users could click on both the background and full text of an ad, but now they can click only on the title and URL of a text ad. This will help in decreasing accidental clicks, better aligning visitor behavior with their intent.

This new click able format better aligns with the text ads. The main focus is to have a more consistent user experience & to benefit advertisers so that advertisers only pay for meaningful clicks. By reducing accidental clicks, Google hope to increase advertiser campaign value and satisfaction, encouraging additional spend and facilitating higher monetization for all publishers.

More information available at: http://adsense.blogspot.com/2007/11/accidental-clicks-fade-into-background.html