Well I learned something new today. These funny little bookmarks that run like mini applications on your Mac and iPhone. LifeClever wrote up a really nice collection of them right here.
Using these "bookmarklets" you can cut out several steps from your typical web search. I particularly like the thesaurus, google images, and wikipedia bookmarklets.
When you really want to geek out, try YubNub which allows you to access a variety of search engines. I tried to figure out how to link the bookmarklets but must admit that I'm clueless so follow the above link over to LifeClever and drag them up to your bookmarks. I made a separate folder of iPhone applications and several of these found their way in but I also find them very useful when at my Mac.