PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.
Promotehour - Free list of 1100+ media outlets to pitch your startup
BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
Press Hunt - Press Hunt saves you hundreds of hours by aggregating data on almost 400,000 journalists and reporters in one place, complete with their writing interests and contact info.
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Submit Juice - Free and curated list of startup directories to promote your new startup. We manually post your startup to more than 150+ relevant directories and blogs to help your startup get discovered.