SiteGainer - SiteGainer is an A/B testing and conversion optimization platform.
Kickstarter - Kickstarter is the world's largest funding platform for creative projects. A home for film, music, art, theater, games, comics, design, photography, and more.
Experiment Engine - Experiment Engine is a A/B testing solution that harnesses human expertise to automate conversion optimization.
Charitable - A WordPress donation plugin that gives you full control over your fundraising experience.
Optimizely - A/B testing you'll actually use.
FreeFunder - Free crowdfunding platform with no platform fee and donates to your fundraiser based on shares!