Snort - Open Source Intrusion Detection

As the most widely deployed intrusion prevention technology in the world, Snort has earned the right to call itself "the de facto standard for intrusion prevention/detection." It performs real-time analysis to detect buffer overflows, stealth port scans, CGI attacks, SMB probes, OS fingerprinting attempts, and other attacks. Operating System: Linux, Unix, BSD, Mac OS X.

AFICK- Open Source Intrusion Detection

Short for "Another File Integrity Checker," AFICK monitors changes to your file systems in order to alert you to possible intrusion. If you're familiar with Tripwire, AFICK will look and feel very familiar. Operating System: Windows, Linux, Unix.

Password Gorilla - Open Source Password Manager

Password Gorilla is a password manager and personal vault that can store login information and notes. The application consists of a single executable that allows you to create a database and save it to a specified location. The encrypted database can only be read in Password Gorilla of course, but the database is actually a different file, separate from the application, so you can create several databases if you wish.

KTouch - Open Source Typing Tutors

Open Source program for learning how to touch-type

KTouch is FREE and offers you an easy way to learn to type quickly and correctly on a keyboard. Every finger has its place on the keyboard with associated keys to press. Starting with only a few keys to remember you will advance through different training levels while additional keys are introduced. As a result you will be able to type quickly and accurately. This is because you no longer need to search for the keys on the keyboard and because you will definitely be using more than just two fingers.