KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.
CheatKeys - View Windows keyboard shortcuts in the current application.
KeyCombiner - Organize, learn and instantly look up keyboard shortcuts
Pretzel - Keyboard shortcuts for the app you're currently using
ShortcutFoo - shortcutFoo is a fun and easy way to learn shortcuts and become a more productive programmer.
Shortcuts.design - Every shortcut for designers in one place!