Landing Pages in MailChimp - Easy to build, custom landing pages for free
Landly - Single link for all your apps
Carrd - Simple, responsive one-page site creator.
Commerce Rays - No-code commerce landing page builder w/ built-in checkouts.
The Landing Page Cookbook - A guide for makers who want to create better landing pages.
LeadPages - LeadPages™ Software is the world's easiest landing page generator. It's the easiest way to build conversion optimized & mobile responsive landing pages.