For those who want a landing page with email "Signup" form, but without running an app server to do it, consider a static web site on AWS S3 + Mailchimp (see <a href="http://kb.mailchimp.com/article/how-can-i-add-my-signup-form-on-my-website/" rel="nofollow">http://kb.mailchimp.com/article/how-can-i-add-my-signup-form...</a>).