Links

• Greasespot Blog
• Greasemonkey at Mozilla Add-ons

Discussions

• Mailing list (users, scripters)
• Mailing list (extension developers)

JavaScript

• MDC - JavaScript - JavaScript reference at Mozilla development center.
• ECMAScript Language Binding - This tells you what kind of objects have what kind of properties and methods.

Tools

• JavaScript Development Environment
• The data:URI kitchen
• Alternate data:URI encoder
• Platypus - a Firefox extension which lets you modify a Web page from your browser and save the changes as a Greasemonkey script