BLT (Braxton's Link Tester)
(shareware) BLT (Braxton's Link Tester) is a link checker for Mac OS X. Use BLT just as you would a web browser. Type in your address, or use a file browser, and sit back and watch. Quickly filter the results by status or by text. Results can be viewed either "flat" or as a "tree."
Covert Channels Evaluation Framework
CCHEF (Covert Channels Evaluation Framework) is a software framework for empirically evaluating covert channels in network protocols running under Linux. CCHEF can be used in real networks with real overt traffic, but can also emulate covert channels using overt traffic from trace files.
MacSysInfo is a system infomation spigot. It gives user hostname, date and time, uptime, hostinfo, number of kernel panics, etc.
StupidZombie is a tool that can be used to "ping" several directories to notify about a blog update.
Visual1553 is a simple program to show you the breakout of Mil-Std-1553 command and status words.
WakeOnLan discovers all other computers in your LAN, and enables you to wake them up by clicking a button. If your remote computer is a Mac you can put it asleep too.