What's the right length for a landing page optimization test? In today's By the Numbers column, "How Long Should My Landing Page Test Run?," Tim Ash notes that that's a bit like asking 'how long is a piece of string?' But there are some guidelines to follow to help you know when enough is enough.
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!