Netfitti: Online Realtime Drawing

Netfitti

Netfitti is a network application for online realtime drawing. Netfitti supports multiple users and operating system platforms. It can be run either as a server or client across an intranet or the internet (with proper setup).
Netfitti can be used as an online whiteboard in meetings to share and comment on:

images (.jpg, .gif, .png)
Adobe Acrobat (.pdf) files
QuickTime media, including movies

Netfitti also works in a school setting as a whiteboard for lectures and classes online. Students may watch, in realtime, drawings and notes made on the whiteboard, but may not modify what they see. Comments may be exchanged through the chat function. Netfitti can also be used by students to collaborate on problem sets requiring the drawing of figures (such as in physics or organic chemistry).