Host and Document Collaborative Brainstorming Sessions With Realtime Board - The service allows you to work with any information and visual content on one board individually or with a team. You can work with images, videos, PDF-files, write notes and comment everything, use colorful post-it stickers and files from your Google Drive. The free education version allows you to create unlimited private and public boards, have an unlimited number of collaborators, and 3GB of storage space.
A multi-user online whiteboard designed to give you the ability to quickly visualize and share your ideas as images. Other users share the room in real time. Save a sketch as an image for embedding.. Use google maps as the background to show directions or share trips.