Are you a web developer?
Mozilla has released a extremely useful site for web dev, called Open Web Tools Directory. The directory is full of frameworks, SDKs, library and anything that you required to develop web app. For example, JQuery, Google Web Toolkit, PHP IDE, and etc.
IT developer. Develop for php, asp, javascript, html, css, ajax, google map api, facebook platform, flash, flex, air, c, java and many more to come. Currently working in Syntax10.