Landing Page also know as Lead Capture Page are very effective in converting site visitors into sales leads, efficiency of a landing page is determined through its conversion rate.
Semanticlp.com have a huge collection of over 350+ Landing Page Design with xhtml/css for sale of various categories including some very popular categories like auto insurance, dating, debt, ebook, google money, hair loss, home insurance, teeth whitening, anti snoring, weight loss, sales pages, facebook fan page etc.