Paco (pacKAGE oRGANIZER) is a simple, yet powerful tool to aid package management when installing programs from source code. It uses the LD_PRELOAD method to track package installations, and provides various options to keep the installed software organized. It's mainly a command line application but it has also an optional GTKMM interface.
forceupgrade recursively installs or upgrades NetBSD packages. Amazingly there is no "pkg_upgrade" tool in NetBSD 1.6, so this does what you'd expect it to do. It is useful for installing or upgrading massive package-trees with lots of dependencies and possible conflicts, such as GNOME or KDE.
pkg_db.pl generates a pretty-printed HTML list and statistics of packages installed via NetBSD pkgsrc. It creates 3 HTML files: one index, containing a list of all installed packages with short descriptions, one with the detailed description of the package, and one with a list of installed files. It requires pkg_info.
This is the "progress" utility from NetBSD, ported to Linux and Solaris. The progress utility allows the file I/O of progresses to be monitored. It includes support for gzip-compressed files, so "progress -z -f file.tar.gz tar xf -" would show the progress of extracting file.tar.gz.