In today's By the Numbers column, "Split Traffic, Raise Conversion Rates, Repeat, Multiply," Eric Enge reminds marketers that site optimization doesn't begin or end with landing page testing. A/B splits don't give marketers splitting headaches anymore. What's the next step? Multiply your variables.

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!

