Browser Shortcuts-Auto-complete web address

On modern browsers, such as IE7 and Firefox, hitting Ctrl + Enter will automatically fill in the www. and the .com part of the URL. Let's see an example:
to go to www.google.com type google in the address bar and hit Ctrl + Enter.

More Keystroke combinations:

• Ctrl + Enter - Auto-complete *.com address
• Shift + Enter - Auto-complete *.net address
• Ctrl + Shift + Enter - Auto-complete *.org address

If you add Alt to any of those key combinations, it will auto-complete and open the new address in a new tab as well. Alt+Ctrl+Enter will auto-complete a *.com address in a new tab, for instance.