Board for Github - A webview based GitHub project app with native features
LibHunt - LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.
Elegantt for Trello - The most elegant way to manage your Trello projects
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.
Trailer - Accelerate your GitHub workflow
JSter - JSter is a community-driven catalog of the most useful javascript libraries.