Tired of teaching your relatives about technology and groaning at the prospect of having to do a quick tutorial on building a Web page for nephew Johnny? You'll be better off pointing them to the recently launched Mozilla Thimble, which lets anyone learn how to create web pages in their browser. Thimble is a WYSIWYG (What you See Is What You Get) editor. It lets you edit the html and CSS text in the lefthand edit pane while immediately showing you the results in the righthand view pane. Clicking any element in the view pane scrolls the edit pane to that element. The editor has three font sizes, comes with undo and redo buttons and saves edits automatically. It's hint system is also powerful, allowing users to mouse over HTML or CSS tags in the edit pane and immediately revealing information about the tag with a link to an online reference. You can also turn off the hint system if it gets in the way.