What: Zipcast is a Web conferencing product that allows users to connect online and share business-related content and ideas using audio, video, chat, and slide decks. The social meeting tool is also integrated with Twitter and Facebook, so users can share conversations and invites over those platforms. In addition, it serves as a means for making meetings more viral.

How: Launched by online presentation-hosting service SlideShare, Zipcast can be used by communications professionals to hold a video conference, audio ...