Draw.chat looks like a nice new collaborative drawing too. And it’s free.
Here’s how they describe it:
Draw.Chat is anonymous, online drawing board. You can create your paint chat in one click – without any registration. Every whiteboard has a unique, randomly generated URL which you can send to other people to start a real-time collaboration.
Get your personal chat room with the whiteboard where you can drop and paste Screenshots, Images and PDF’s. Use your camera to start a secure P2P video conference. You can also drag and drop images from your camera directly to the canvas. Use the bell for offline notification – when someone else open or write in the chat room. Draw.Chat delivers tools for annotating PDF’s, Maps, and Screenshots.
I’m adding it to: