clockspeed uses a hardware tick counter to compensate for a persistently fast or slow system clock. Given a few time measurements from a reliable source, it computes and then eliminates the clock skew. sntpclock checks another system's NTP clock and prints the results in a format suitable for input to clockspeed. sntpclock is the simplest available NTP/SNTP client. taiclock and taiclockd form an even simpler alternative to SNTP. They are suitable for precise time synchronization over a local area network, without the hassles and potential security problems of an NTP server.
cdb is a fast, reliable, lightweight package for creating and reading constant databases. It features fast lookups, low overhead, no random limits, fast atomic database replacement, and fast database dumps. cdb is designed to be used in mission-critical applications like email. Database replacement is safe against system crashes. Readers don't have to pause during a rewrite.
hardmon is a hardware monitor which includes indicators for temperature, voltage, and fan speed. It displays these indicators in a graphical panel. The default configuration allows you to monitor up to 3 temperatures, 3 fan speeds, and 6 voltages. This tool is particularly useful for multi-processor systems. The look may be changed by configuring the panel's pixmap and by altering the indicator positions.
NetTraf consists of a daemon that gets information from a Linux interface and sends it on the network to NetTraf clients. Clients then can use the information to show to the user how the connection is performing. This program is mostly useful with dial-up connections on a masqueraded server, so all users on the network know when the connection is active, and if there is too much traffic on the line. This package DOES NOT comes with any client applications; you can find them on the homepage. The author needs help to develop a Linux client.
GETGUI is a standalone X11 utility that can be used to easily add a degree of graphical user interface functionality to shell scripts or other programs. It can display informational messages and progress messages, or it can be used to get user input via dialog boxes, keyboard input fields, pulldown menus, or select boxes. "Wizard"-type procedural interfaces can be implemented using a series of getgui invocations. It also includes a popup alarm clock utility (eg. "It's time to leave!").
Allegro is a multi-platform game library for C/C++ developers that provides many functions for graphics, sounds, player input (keyboard, mouse, and joystick), and timers. It also provides fixed and floating point mathematical functions, 3D functions, file management functions, compressed datafile, and a GUI.