WordPress plugin development:
Passing parameters from PHP to Javascripts in plugins: http://ottopress.com/2010/passing-parameters-from-php-to-javascripts-in-plugins/
How To Include CSS and jQuery in my wordpress plugin?: http://stackoverflow.com/questions/3760222/how-to-include-css-and-jquery-in-my-wordpress-plugin
Introduction to Creating Your First WordPress Widget: http://code.tutsplus.com/tutorials/introduction-to-creating-your-first-wordpress-widget–cms-22403
How To Build WordPress Widgets Like A Pro: http://premium.wpmudev.org/blog/how-to-build-wordpress-widgets-like-a-pro/
5 Tips For Using jQuery with WordPress: http://www.ericmmartin.com/5-tips-for-using-jquery-with-wordpress/
How to Include jQuery and CSS in WordPress Plugin and Theme Development?: http://masterblogster.com/how-to-include-jquery-and-css-in-wordpress-plugin-and-theme-development/
Developer FAQ: https://wordpress.org/plugins/about/faq/
Readme Standard: https://wordpress.org/plugins/about/readme.txt