By comparing site analytics data with its Audio Ads campaign data, Google has greatly improved measurement of offline ads driving visitors online. In today's Web Analytics and ROI column, "Google Analytics' Cross-Channel Measurement," Eric Enge compares Google's methods to other traditional methods for offline marketing measurement.

Introducing SES Online
Want to view one of the sessions you missed or listen to an especially informative presenter a second time? SES New York sessions are available for purchase on ClickZ Academy's new e-Learning site. SES is now Online!

