Quick links to existing articles
Here are links to a couple of articles that I've written for CodeProject. I've got some ideas for a few more articles - hopefully I'll find time to squeeze them in during the summer.
Boyer-Moore string matching in C# http://www.codeproject.com/cs/algorithms/BoyerMooreSearch.asp
File System Enumerator in C# http://www.codeproject.com/cs/files/FileSystemEnumerator.asp