If you're anything like me, you certainly like to know how the things you use work. Well, I've been dying for a good, brief explanation of how Google works, and apparently I wasn't the only one. RobertvH from Munich did too and sent in a question to Google who produced a video explaining the crawling, indexing, and search portions of the process.
Mountain View's head of web-spam, Matt Cutts takes you through the process in the video. The short answer to the question is a lot of processing power and experience. Matt does a great job of keeping the audience engaged, so I really hope more videos like this get released. It really is a nice view into the inner workings of Google.