Tinychat - Free online video chat rooms. TokBox - Free Video Chat and Video Messaging. The social learning revolution. Home | www.bigbluebutton.org. Free web video conference, meetings & video chat rooms. Digital Samba : simply communicate. Dimdim: Web conferencing that just works. Dimdim provides easy, open, affordable collaboration. Use for online meetings, eLearning, desktop sharing, training, distance education, unified collaboration, webinar, free web meetings and more. EdTechTalk. Mogulus - Home.