Groupboard is a free online shared whiteboard and chat app that can be easily embedded into your website. It works on any web browser including iPhone, iPad and Android with no downloads or plugins required. Groupboard has been used by universities, online tutors, architects, designers and artists since 1998 for distance learning, collaborative design and online doodling!
2- Concept Board
Conceptboard comes along with plenty of features enhancing the creation and further development of your ideas, drafts and all sorts of documents. Just draw on the resources and let your creativity flow.
Scribblar is another great whiteboard tool that is perfect for online tutoring. It is actually used by teachers, students, and schools in over 25 countries.
Twiddla is a real-time online collaboration tool. Its beauty is in its simplicity and accessibility: no plug-ins or downloads, no need to work around complex firewalls, no advanced scheduling.
Vyew allows you to meet and share content in real-time or anytime. Upload images, files, documents and videos into a room. Users can access and contribute at anytime.
Simple and easy online multi user whiteboard, start skrbl, give out your URL & start working together. Sketch, text, share files, upload pictures all in one common shared space. There are no new tools to learn, nothing to download, nothing to install.
7- Web Whiteboard
Web Whiteboard is a simple online tool for writing and drawing together with other people. It is optimized for instant access and ease of use.