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.
openDesktop.org - The website openDesktop.
BlackBerry Hub - Download a free trial of BlackBerry Hub+ apps for Android phones running Lollipop 5.0 or higher. Boost productivity with BlackBerry Hub+ Inbox, Calendar, Launcher and more.
SourceForge - The Complete Open-Source and Business Software Platform.
Maqtoob - Discover business tools
Freecode - Freecode (formerly known as Freshmeat) is one of the legit open source development platforms that will be the key for developers and programmers to have a streamlined process via having enhanced collaboration and coding leverages.