With the new CS4 having just been released, Adobe has announced a new service called InContext Editing, which will make it possible for designers, clients, and publishers to update and edit their websites on the fly, using their browsers.

For designers, this will be a huge relief considering there is minimal integration needed to create a fully editable page for our clients, while still being able to preserve design integrity. The Adobe InContext Dreamweaver menu includes options for us to specify how much freedom to give clients when editing their content. With the ability to disable font-styling, we no longer have to worry about clients adding cyan Comic Sans text on our beautifully designed sites.
 

 
Adobe InContext Editing works in conjuction with Dreamweaver CS4 - you must have the new CS4 application in order to make InContext Editable regions. Dreamweaver CS4 is available for trial download at adobe.com, as well as a prevew of the InContext Editing service.