Bypassing Corporate firewalls using SSH

Using your Home proxy server to access various blocked sites from your office
        http://daniel.haxx.se/docs/sshproxy.html
        http://dag.wieers.com/howto/ssh-http-tunneling/
        http://sebsauvage.net/punching/

Accessing Office PC from Home using SSH Forward
         http://manugarg.freezope.org/notes/ssh_tunneling/index.html

Warning : Information Security is very strict in most of the Corporates. So do it at your own risk.