Lifehacker Top 10: Top 10 Quicksilver Plug-ins
Open source Mac utility Quicksilver isn’t just an application launcher—it’s a comprehensive keyboard interface. Launching applications and documents is just Quicksilver’s gateway drug: The more you get used to doing things with Quicksilver, the more things you want to do with it.

Nice article. I have been using QS for years. No dock for me. Superfast launching of any app, looking up things, and moving stuff – especially moving. Check out this Google Talk by the inventor of QS. Terrible speaker, but great ideas.