I've separated some components of my code library and I just finished polishing Quill, my logging system, as well as writing the documentation for it.

Before I post a link, I want to point out that it's only been tested with Microsoft Visual C++ 2008 Express Edition and that it requires boost & STL.

You can download the zip here which contains:
Quill.h - The header file
Quill_d.lib - The debug static library
Quill.lib - The release static library (all code is removed via preprocessor flags.
Simple.cpp - A simple example. The code for this is included in the documentation as well.
CustomFormatting.cpp - Another simple example that uses custom formatting. The code for this is included in the documentation as well.
documentation - The documentation folder.

The documentation isn't the best, but I find it adequate.
You can check it out here.

Any comments, suggestions, and/or questions would be greatly appreciated.