The kind folks at Omniture.com have created an informative webinar focusing on landing page optimization. This is a service from the Omniture Marketing Experts On-Demand series 2008 summit.
Keyword and langing page strategies are key to paid search campaigns and PPC ad budgets.
Landing Page Optimization Strategy depends on a detailed knowledge of all the keywords in your campaign and how well they convert. Generally, keywords should be directed to a specific landing page.
LPO is far better at optimizing and cleaning junk away from distracting users.