Many Learning Management Systems recognize the power and utility of a whiteboard space for online classrooms. Some have the facility built in; some make reference to external ones. Some that are in place still require the functionality of an add-on like Adobe Flash. And, unfortunately, some don’t have the facility at all.
So, teachers are left looking for alternatives.
If that’s you, you might want to check out Whiteboard.fi.
This is an incredibly simple tool to use. No personal identifying information is required for a teacher to set up a session and no personal identifying information is needed for a student to join the session. All they have to do is provide the link to the Whiteboard. Of course, we all have learned about the challenges of posting links publically with stories of online meeting rooms being “bombed” so you’ll keep the link private to your classroom.
It’s always a good idea to keep an eye out for privacy concerns in this day and age. You’ll find this pretty straightforward.
The privacy for Whiteboard.fi is very simple:
No registration is required to use the service. No username, e-mail or password is required.
No personal information is stored or collected. The participants are asked their names when they enter a room (in order for the teacher to identify them), but nicknames or aliases can be used.
All information is deleted when a room is closed (or after 2 hours of inactivity).
No information is shared with third parties.
No ads are displayed on the service.
Google Analytics is used for visitor analytics.
The servers are located within the European Union.
If you’re on the lookout for a collaborative whiteboard, you might want to check this one out and see if it fits your needs.
doug -- off the record 
Please share your thoughts here. I’d enjoy reading them.