» OpenSSH An open source SSH client and server. http://www.openssh.com
» OpenSSH on Windows Port of OpenSSH server and client for Windows. http://www.networksimplicity.com/openssh/
» SSH Communications Security Includes information about the SSH protocol. Has a variety of SSH products for sale, including clients, servers, and VPN software. http://www.ssh.com/
» SSH Master FTP Site Binaries for SSH1 and SSH2 clients and servers for Windows and Unix. ftp://ftp.ssh.com/pub/ssh
» SSH Patch Repository NCSA's collection of patches for SSH. http://www.ncsa.uiuc.edu/UserInfo/Resources/Software/SSH/patch_repository/SSH_patches.html