OS X's Spotlight feature is a great search tool, and is fast enough to use as a keyboard-based application launcher, but that's about where its usefulness ends. Quicksilver picks up the slack by allowing users to control nearly every aspect of their computer without ever touching their mouse. Once you use it, you'll wonder what you did without it. Read the review and tips after the jump.

In this guide, I will briefly discuss the philosophy of peer-to-peer technologies, and review my favorite bittorrent clients and trackers, as well as a network security application called Peer Guardian. Read on if you're curious about bittorrent but have never tried it, or if you already use bittorrent but are concerned about privacy and security.

This past Tuesday, Mozilla set a new world record with more than 8 million downloads in just 24 hours. Firefox 3, Mozilla's open source web browser, offers improvements to memory management, a new bookmarks system, enhanced security features, and better operating system integration for Mac users.

ThoughtAndMemory.org has created an online tool to help students and volunteers review and rate the socially responsible performance of consumer products.