ON THIS LINK

The Order of Things to Learn Look to the "Resources" section for places to learn about these. 1. HTML. Hypertext Markup Language. Not the same "language" as JavaScript. This is a markup language, meaning it's a bunch of text that is meant to represent some type of structure, in this case, a web page. 2. XML. Extensible Markup Language. In case you didn't realize, HTML itself is a type of "XML". Learning XML is important because many popular websites (YouTube, Facebook, Last.fm) use XML to interact with data. Since you already know HTML by this point, understanding XML should be cake. 3. CSS. Cascading Style Sheets. This is the way HTML (should be) stylized. You'll want to learn this. 4. JavaScript. Learn all the basics: data types, functions, JavaScript's native functions like prompt, alert, etc. 5. The Greasemonkey Extras. Like I said, Greasmonkey == JavaScript, with a lot of extras. A specific page listing the API's can be found here.