xcolorsel is an X utility that displays the contents of the X color list file (/etc/X11/rgb.txt) together with tiles showing how the color looks on your screen. You can cut the color names/definitions in various formats (suitable for resource files or C source) so they can be pasted directly into source codes or resources.

The newmail program usually puts itself in the background and watches mailbox files in order to report when new mail has been arrived. The originator and subject will then be reported on the terminal it was started. The output can also be integrated in graphical programs.

ncap is a network capture library like libpcap (on which it is based) and tcpdump. It produces binary data in its own ncap format, which can be stored in a dump file or transmitted over a UDP socket. Unlike libpcap, it discards data link headers and only supports IPv4 and IPv6 packets, but it can perform reassembly of IP datagrams.

ESE Key Daemon is a multimedia keyboard daemon for Linux. With the 2.6 kernel series it can also handle remote controls, as they are presented as keyboards. No kernel patch is required. It is a userspace program that pools /dev/input/event? interfaces for incoming keyboard key presses.

The advantage of nap over other graphical clients like gnome-napster is that you can run it under screen(1) on a remote host and disconnect from your session while nap continues the downloads. You can later reconnect to your running client even from another host and do more commands.