Why another XML library? Because it is fast, easy-to-use and -important- it is my personal work about the second layer of the Semantic Web. LGPL 2.0 license
The MLib (pronounced "M-Lib") is a C software framework that significantly simplifies the development of highly reliable system-level libraries and programs (like daemons/services). It is small, efficient, robust and highly portable, and was designed primarily for embedded systems. (From the FreeType project)
Document Archive (docarc) is a database written in Perl to help you (and your workgroup) keeping track of the vast amount of electronic documents and BibTeX entries you might have in use.