Some technical articles and source code snippets (mainly VC++) that we have written can be found here.
Get MAC Address - Many ways of getting the MAC Address, click through to find out the pro's and cons of the many methods available.
Crypto - I recently completed some work using the Crypto API, heres a complete code example to get it up and running (something that i couldnt find after extensive searching).
Website - I've been doing a lot of web work recently. Here is a basic 'what to do' guide for creating or improving a site.
Resources - A list of great coding websites, featuring: tutorials, utilities, forums and loads more useful stuff.