Google Timer

Google Search has a cool feature: search for [set timer for 5 minutes] and you'll see this interactive timer box. You can stop the timer, reset it and Google even has a notification sound you can disable.

Obviously, you can search for [set timer for 30 seconds], [set timer for 10 minutes and 10 seconds], [set timer for an hour and a half] or any other time. If you close the search page, Google shows a warning: "Leaving this page will stop your timer".

{ via Search Engine Roundtable }