Oli Gardner and Unbounce.com have produced an exceptional 11 part online series that aims to help make our landing pages perform better. You can sign up for the course here.
The course is accessible via a secure link emailed to ‘students’ every few days. I recommend it to anyone that wants to increase the marketing performance of their site. Each of the 11 parts is very easy to understand, provides clear and often illuminating practical theory as well as examples that support what is being taught. My only criticism if I were to have one is that the focus is very much on lead generation rather than ecommerce, although much of the course applies equally to both types of site.