BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
Stashes - Start your own curated directory and discover awesome resources.
PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.
Mr. Free Tools - The Most Advanced Directory of Free Tools
StartupBase - Community of makers & early adopters
StartupResources.io - Tightly curated lists of the best startup tools