Wanna see what other people are searching for? Watch the search query ticker at the WebCrawler Search Voyeur.
MetaCrawler has two versions of its voyeuristic feature. The one with all the naughty bits removed is MetaSpy. From there you can turn on the uncensored version, Metaspy Exposed.
And then there are the parody pages. Here's a small selection -- take-offs on AltaVista, Magellan, and the ever-popular Yahoo:
And if you really get desperate, try our own, in-house search engine.