Growing Page - Browse web projects and evaluate them by multiple criteria.
Mattermark - Ranking 800,000+ high growth Internet companies
PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.
Breakout List - A list of the fastest growing startups
SimilarPages.com - SimilarPages has found and classified millions of interesting sites hidden due to low popularity with the goal of helping you discover and search a larger portion of the web
Signum Startup Tracker - Cookie-free precise targeting based on AI content analysis