PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.
Instaaa - Promote your startup using AI-powered outreach
BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
Submit.co - Find where to get press coverage for your startup
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.
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.