If you are familiar with StumbleUpon, then you should give a try to this web sites discovery service. Fast Forward is an add-on for Mozilla Firefox browser, which works similar like StumbleUpon and claimed to be better than StumbleUpon. This service generated web pages recommendations based on popularity as well as by the order in which they are viewed. If you like to discover the top sites that people are currently viewing, Fast Forward is what you need.
Unlike StumbleUpon, you don’t have to register in order to use Fast Forward. To use Fast Forward, you need to first install this plugin. After installation, a Fast Forward button will sit next to the “Go Forward One Page” button in your Firefox browser. Now you can press the Fast-Forward button to forward you to the top page people visited next
