Andrew over at the Cashtactics blog has an excellent, very in-depth tutorial about landing page design, testing, tracking and optimization.
<a href="http://cashtactics.net/02/03/landing-page-tutorial-part-2/">Landing Page Tutorial Part 2</a>
<a href="http://cashtactics.net/02/23/landing-page-tutorial-part-3/">Landing Page Tutorial Part 3</a>
VIDEO: <a href="http://cashtactics.net/10/27/cs13-pay-per-click-case-study-part-3-landing-pages-and-tracking/">PPC Case Study Part 3 - Landing Pages and Tracking</a></strong>
<strong><a href="http://cashtactics.net/01/30/landing-page-tutorial-part-1/">Landing Page Tutorial Part 1</a>"More experienced internet marketers understand the importance of landing page testing and optimizing, however many newcomers fail to grasp how big of a factor landing pages play in determining how profitable or unprofitable a campaign will be. One of the biggest mistakes I tend to find amongst marketers, when they are talking to me about their unprofitable campaign, is…'
<a href="http://cashtactics.net/02/03/landing-page-tutorial-part-2/">Landing Page Tutorial Part 2</a>
<a href="http://cashtactics.net/02/23/landing-page-tutorial-part-3/">Landing Page Tutorial Part 3</a>
VIDEO: <a href="http://cashtactics.net/10/27/cs13-pay-per-click-case-study-part-3-landing-pages-and-tracking/">PPC Case Study Part 3 - Landing Pages and Tracking</a></strong>