Clients
BeOS, DOS, Macintosh, OS-2, Unix, Windows, EmTec - ZOC, SSH Clients, The Java SSH/Telnet Application/Applet
Documentation
CERT Advisory CA-99-15, Make SSH Do More, Ports of SSH, Secure Shell for Servers (Quickstart Guide), SSH and beyond, SSH RFC, The Secure Shell (SSH) FAQ, The Secure Shell Community Website, Timing Analysis of Keystrokes and Timing Attacks o
F-Secure SSH
SSH clients and servers for multiple platforms. Free evaluation versions. Supports secure file copying and tunneling.
IETF Secure Shell (secsh) Working Group
Contact information and papers of a group standardizing the SSH protocol.
OpenSSH for Windows
Minimal SSH server and client utilities for Windows which does not require full Cygwin install.
OpenSSH on Windows
Port of OpenSSH server and client for Windows.
SSH Communications Security
Extensive information about the SSH protocol. Has a variety of SSH products for sale, including clients, servers, and VPN software.
SSH Master FTP Site
Binaries for SSH1 and SSH2 clients and servers for Windows and Unix.
SSH Patch Repository
NCSA's collection of patches for SSH.