Edit in Place rich text areas has been a bit of a holy grail for me lately. Several of my project call for the ability to provide rich text on demand.  You can already do this with the YUI rich text editor using some positioning magic.  In this Prototype extension,  the entire rich text area toggles to replace the inline content.

Rails support is provided out of the box.

Check it out here:  http://inplacericheditor.box.re/

Via: Scripteka

• WysiHat Prototype Based Rich Text Editor
• Ajax24’s Drop Tabs. A Creative Take on The Tab Box for Scriptaculous
• Image Cropper, Smooth Ajax Based Image Cropping for Prototype
• Prototype 1.6 & Scriptaculous 1.8 Have Landed
• Prototype UI: A consolidated library of Prototype / Scriptaculous widgets
• A Look Ahead at Script.aculo.us 1.8
• Prototype Transparent Message
• Prototype Carousel
• Prototype Window Class
• EXT JS