WordPress Melbourne User Group April 2013 Users Meetup
Blogger to WordPress Migration Plugin: How It Works
Drupal to WordPress Migration Plugin. How It Works
CMS2CMS Automated b2evolution to WordPress Convertor Plugin: How it Works
CMS2CMS: Joomla! K2 to WordPress Website Migration
Joomla to WordPress Migration Plugin. How It Works
Dan Catalin Vasile - Hacking the Wordpress Ecosystem
Mavenppt
Backing up WordPress & Basic Security presented at WordCamp Atlanta, 2013.
WordPress Commercial Plugins
The Genius of Wordpress - notes
How to Migrate From Joomla K2 To Wordpress