WebRoom is a free service for hosting online meetings. WebRoom doesn't require you to download any software and you don't need to register in order to use it. WebRoom lets you use your webcam if you want people to see your face during the meeting. A whiteboard space is provided. You can draw on the whiteboard or upload a file to share and discuss on the whiteboard. A text chat space is provided in each WebRoom meeting. It is possible to share your screen with other meeting participants. However, to share your screen you will need to install the WebRoom Chrome extension.
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.
Scratchwork is an online whiteboard and video conferencing tool designed with math students in mind. The platform works like many similar services as it provides you with a whiteboard on which you can draw, type, and import images to annotate. Scratchwork is a little different than other services because it includes a Latex editor for writing equations. Scratchwork also offers an option to draw on a tablet and import those drawings. The collaboration aspect of Scratchwork comes into the picture when you activate the video conferencing component built into Scratchwork. Scratchwork's free plan has a limit of four boards and three collaborators.