http://codex.wordpress.org/Writing_a_Plugin Essential WordPress Plugin Development Resources, Tutorials and Guides 20 Tutorials to Develop WordPress Plugin 10 Tutorials To Kickstart Your WordPress Plugins Development Create a Custom WordPress Plugin From Scratch http://www.problogdesign.com/wordpress/a-novice-guide-to-wordpress-plugin-development/ http://www.slideshare.net/chzigkol/wordpress-plugin-development-short-tutorial-presentation http://www.devlounge.net/extras/how-to-write-a-wordpress-plugin