Google's I'm Feeling Lucky search automagically takes you to the first result for your search. If you use it as a link you never go to any Google page, just to whatever the top result is. I find this a very useful way to provide links that never go dead. There are some problems though. If Google ever changes the way the URL works your links will go dead. Also there is the chance involved in sending people to an unknown site. Lastly for some reason the URL doesn't seem to work with every set of search terms. I find this very odd, and can't figure out why it doesn't work for the ones it doesn't. For example while fun monkey works, fun monkeys doesn't.