Wmbattery displays the status of your laptop's battery in a small icon. This includes if it is plugged in, if the battery is charging, how many minutes of battery life remain, battery life remaining (with both a percentage and a graph), and battery status (high - green, low - yellow, or critical - red).
wmdctrl is a diald control application which can be used in the windowmaker dock. It displays information about a running diald daemon, including the interface name, state, timeout, size of queue, and TX/RX transfer rate bars. There are also a series of buttons for controlling the connection, including bringing it up, down, and docking as well as a button to launch dctrl for more information. wmdctrl is based loosely on dctrl, and on other windowmaker dockapps.
WMgMon is a generic monitor applet for WindowMaker and Afterstep. It can display CPU, I/O, memory, and swap usage, as WMMon does. It can also display the result of other programs, as WMScript does. The result can be displayed as a gauge, a histogram, a percentage, a number, or any combination of those. WMgMon's advantage is that it lets you configure what's displayed in its configuration file so that you can tailor it to your preferences and easily extend it by adding new monitoring functions and new scripts.