Hashapass

About Hashapass
Automatically generates strong passwords from a master password and a parameter. So for example, you can generate a differnet password for “hotmail”, another one for “digg”, etc., and you just need to remember one password.

When you are not using your regular machine, you can go to http://hashapass.com and find a form that will help you recover your password safely, and without transmitting your password over the Internet.