I've been programming for the Web on and off since 2001 and working with Drupal for over five years now, specifically with Drupal 7. Active on drupal.org since January 2011, I wrote/adapted/edited the Drupal 7 module development tutorial: See Creating modules - a tutorial: Drupal 7.x. I have also maintained the Form API Reference, and helped sporadically to co-maintain Examples for developers. Check out the module, Content Types per Menu, for an example of code I've contributed.