High Quality Content by WIKIPEDIA articles! Dimdim was a software company that provided a web-based platform for realtime, rich-media collaboration and meetings. Dimdim provided free web conferencing service where users could share desktops, show slides, collaborate, chat, talk and broadcast via webcam. It has been compared to the WebEx 2.0 web conferencing solution. Dimdim was acquired by Salesforce.com on Jan 6, 2011.