Mashup Template - Collection of beautiful free HTML templates
OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
Ethereal by HTML5 UP - A fully responsive side-scrolling one-page HTML5 template
Sleeknote - Set up lead capture forms on your website in minutes. No coding required. Sync your new email leads with your favorite email service provider. Try for free.
Inovatik HTML Templates - Download 24 FREE HTML templates to help you create beautiful websites and landing pages faster.
Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.