Pretzel - Keyboard shortcuts for the app you're currently using

Devo - Devo delivers real-time operational & business value from analytics on streaming and historical data to operations.

KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.

GitSpo - Measure & engage your open-source community

Hotkey Commander - Find out and override what hotkey combination is registered by which application.

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.