From their web site in Google Code:
libanculus-sharp is a reusable utility library written in C#. “Anculus” means servant in Latin, and that is exactly what the library does. It serves and helps you to easily and quickly write new applications. libanculus-sharp contains all the building blocks that you need to develop a good C# application.
Features provided include: XML Configuration files, Sorting algorithms, Translation support, Logging, Gui Thread dispatching and Collections.The library is released under the The MIT/X11 License.
They provides a Full Api Documentation through MonoDoc under libanculus-sharp category after installation, also you will find some nice tutorials on their website.
This library is one of the dependencies of the Galaxium Messenger, another great mono application.
If you are developing with C# under mono or .Net, you should take a look to this library.
Homepage: http://code.google.com/p/libanculus-sharp/