Contributing to webkitty.org is very easy. The first step is registering for the wiki. Click on “Login” in the navigation sidebar and then “Register” on the following page or click here. When you have registered successfully you can login to the wiki and start adding content.
You can either add to the reference section and add new articles about css, html or javascript or you can provide application specific content e.g. for the iPhone. Almost every web developer has done some experiments, has created a useful widget, script snippet, tip, trick or workaround. webkitty is a great way to share these resources with other developers!