Draw Chat is a free service that allows anyone to create a video chat over a whiteboard, PDF, image, or map. To use Draw Chat you just have to visit the site and click "Start New Whiteboard." Once your whiteboard launches you will have the option to enable access to your webcam and microphone. You can have people join your whiteboard video conference by sending them the link assigned to your whiteboard.
Draw Chat allows you to draw or type on a shared whiteboard. Additionally, you can upload a PDF or an image to annotate on the whiteboard. A fourth option for drawing on Draw Chat is to import the URL for a Google Map and draw on that map.
Applications for Education
Draw Chat could be a good service for students to use for remote tutoring. It could also be useful to students to have remote meetings to plan a presentation or edit a project outline.
One of the odd things about Draw Chat is that you're randomly assigned a username in the video and text chat rather than getting to choose something obvious like "Richard." Those randomly assigned usernames could be a source of confusion unless you use the video conferencing aspect of Draw Chat.