Dimdim calls itself the world's first free Web meeting service based on an open source platform. Users can share their desktops and files while chatting and videoconferencing with meeting participants. Dimdim was originally licensed under the Mozilla Public License (MPL), but the possibility of a big deal with a university made Dimdim executives eventually change to the GNU General Public License (GPL) instead. By changing the software's license from the MPL to the GPL, "we are making it easier for the community to use our product," says Dimdim founder DD Ganguly.