Scribblar, a collaborative whiteboarding tool (previously reviewed here), announced today that they now support the upload of PPT files. Now you can upload your PowerPoint slides then draw on them, highlight them, and have others do the same. This feature is in addition to all of the other useful features Scribblar offers including equation editing, Flickr uploads, and live chatting while collaboratively sketching.

Here’s a demo of some of Scribblar’s features. (Note, this demo doesn’t include the recently added equation editing and PPT uploads).

Applications for Education
Scribblar could be a used by students to collaborate on the creation of mind maps. Students and teachers could also Scribblar to provide online tutoring by using the equation editor and audio chat features.

Here are some related items that may be of interest to you:
Scriblink – Your Online Collaborative Whiteboard
Postica – Collaborative Sticky Notes
Board 800 – Free Collaborative Online Whiteboard