manServer is a troff (or nroff) to HTML interpreter written in Perl. It is designed specifically to convert manual pages written using the man(7) troff macros into HTML for display and navigation with a Web browser. To this end it includes direct support for man macros (also limited support for tbl, eqn, and the doc macros) as well as the most common troff directives.
mmounter tries to mimic the behaviour of MacOS with regards to automatic monitoring and mounting of the volumes in your system (CDs, ZIP disks, floppies, HDs) using their volume name as the mount point. It will optionally eject devices and let users mount/umount them. Currently mmounter supports ext2, ext3, iso9660 (CD), HFS, and VFAT. This tool is user-space only (doesn't require any kernel patching) and should be fairly portable.
MailWatch is a program for analyzing mail traffic. As each message is received, Mailwatch records summary information about it. Later, it can generate a textual report, showing the number of posts during a time period, who the most prolific posters were, and what the most popular topics were. It is targeted at the end user who wishes to generate statistics for personal email or mailing lists.
lperfex is a utility which accesses the hardware performance counters on Intel P6-based Linux systems to measure performance characteristics of other programs. It functions similarly to the Cray UNICOS hpm and the SGI IRIX perfex utilities, in that you can use lperfex to measure performance metrics like megaflops on existing applications without having to recompile or instrument them.