We've been spending a lot of time lately working on Twiddla's
API for Creating and Embedding Whiteboards. If you haven't checked it out, our API is a great way to add Whiteboarding functionality to your site. They make great Online Classrooms for Tutoring sites.
This weekend, we introduced a way for developers to test out every last piece of the API without having to upgrade to a paid plan. We call it the API Sandbox account. It never expires, and it gives full API access, with just a few minor limitations to dissuade folks from trying to run a production site with it.
Pretty cool, eh? Take it for a spin and let us know what you think.