PuTTY - Popular free terminal application. Mostly used as an SSH client.
CheatKeys - View Windows keyboard shortcuts in the current application.
ZOC Terminal - ZOC is a professional SSH/telnet client and terminal emulator. With its impressive list of emulations and features, it is a snap to access hosts and mainframes via secure shell, telnet, serial cable, modem/isdn and other methods of communication.
KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation