Well apart from my earlier rant on the scary parts of google (http://weblog.thomassmart.com/2008/09/google-friend-or-foe/) the search engine does have many fun features.

Did you know that from the search on www.google.com you can search for:
Weather amsterdam to get the weather in amsterdam
Time amsterdam to get the current time in amsterdam
5*10 to get 50, or any other calculation [...]