QFitsView is a FITS file viewer based on DPUSER. In addition to displaying two-dimensional images, it also provides means to explore three-dimensional data cubes. It integrates the functionality of DPUSER which can be accessed directly out of QFitsView.

CERNLIB is a suite of data analysis tools and libraries created for use in physics experiments, but also with applications to other fields such as the biological sciences.

SimpleID is a simple, personal OpenID provider written in PHP. OpenID is a way to provide for a single digital identity across the Internet. To get an OpenID you need to sign up to an OpenID provider, who acts as the "custodian" of your digital identity. Every time you want to log into an OpenID-enabled web site, you will be redirected to your OpenID provider, who will then verify your identity and provide this to the web site.

MRTGutils is a collection of simple utilities to generate output useful for mrtg. Many of the existing mrtg setups use shell or perl scripts to gather output. On busy systems, these scripts can generate a lot of extra load. These (small) C programs can return the given statistics more efficiently.

POD allows for the documentation of Perl code. But with a few tricks, e.g., when disguised as comments, it is applicable to many other languages, too. It resembles HTML in the way that it allows for the structured representation of text. Hence, it looks rather good when converted for printers, HTML or man pages.