I’ve long admired Marketing Sherpa’s dedication to bringing good information to marketers, particularly corporate marketers, who generally don’t have access to the leading edge stuff promulgated by hyper-focused niche entrepreneurs.
And since I’m a big fan of split testing, I especially like to see products that help you figure out how, what and when to test. So I was glad to see them launch the Landing Page Handbook [aff.]. It’s got a ton of information (185 pages) and covers everything from copy to design to multimedia to eye-tracking heatmaps.