A Firefox SEO Toolbar Extension – great for checking on your site(s). Check Google PageRank, Google category, Alexa, Complete.com, incoming and backward links for Google, Yahoo!, and MSN.
chatrooms, image galleries, applets, advanced php/mysql systems, website scripts, flash xml, chat, and more – most scripts are $5
Dodo’s is a great collection of php scripts and code. Very usable gallery, upload, quiz, mailer, random generator, and other scripts.