Ban IPs based on #failed login attempts
Upload files through Putty. Without additional software.
Remote control through ssh and xdotool
Tabbed Putty Connection Manager providing upload/download also
Successor to PuTTY with advanced features similar to iterm2
FireEgl's PuTTY -- FuTTY!
Maverick .NET SSH API
A c++ wrapper/bind around libcurl
.NET SSH client allowing to execute commands on multiple servers
Fork of PECL SSH2 0.11.3 includes keyboard_interactive login
Implementing jQuery to Anyterm
Lomalarga is a VPN-like service based on SSH and Linux.