GroundWork Monitor Community Edition can give you insight into your computing infrastructure, allowing you to see the current and historical states of all your computers: servers, desktops, and laptops, all of your network devices, all of your services (like TCP/IP and Web services), and all of your applications (like mail servers and database apps). You can choose to be alerted when something goes awry via pager, SMS, email, or phone, and even set up automatic restarts or fall-overs.
Apmiser is a daemon that monitors the CPU usage patterns of your laptop and automatically switches between power-saving mode (in which the CPU is underclocked) and normal mode, depending on whether it thinks you will need the extra CPU speed. This lets you leave your laptop in it's power-saving state without having to suffer from poor performance when you need to perform a CPU-intensive task. Apmiser currently only supports IBM Thinkpads via tpctl, but support can be easily added for any laptop that supports switching power-saving modes programmatically.
The Emu10k1 Driver for Linux supports Creative Labs' Emu10K1 chip, which is found in SoundBlaster Live! cards. It supports full duplex sound, two sound devices (dsp, dsp1), OSS compatibility, AC97, sndstat, MIDI, a Joystick interface and more than one EMU10k1 board in one computer. It does not yet support SMP.
The USB Keyboard Target TTY Extension is a Linux kernel patch which allows you to bind the input/keybdev.c driver which is used for USB keyboard input to a specific console. In essence, this allows you to use Linux with two keyboards (PS/2 and USB) and have the USB keyboard attached to, for example, tty5 to control a speech-based application like Emacspeak, and have your PS/2 keyboard function as before. If you can stand audio output for Websurfing, you get a Linux PC with two terminals.
This is a Linux driver for the Artec AS6E scanner. It scans on all available hardware resolutions in color, greyscale, and lineart, and functions in EPP, PS/2, and SPP parallel port modes. It can be used as a stand-alone program from the command line, or through the SANE (Scanner Access Now Easy) project's software.
Modem.pl is a small script that scrapes the Web interface of a Motorola SURFboard cable modem for various status conditions like signal strength and signal to noise ratio. The results are sent to STDOUT where they can be easily piped into a log file. The modem values are also checked for reasonable operating ranges. If the modem values are outside of reasonable operating ranges, results are also sent to STDERR. When run from a cron job, modem.pl can be used to monitor the condition of the cable service and notify someone before conditions cause service interruptions.