The document describes a proposed sound-based social network called Hubbub that aims to address limitations of existing social networks for sharing audio content and verbal communication. Hubbub would allow users to share 30-second voice messages, follow other users to listen to their messages like a radio stream, and provide a pure audio social experience without interruptions from browsing. The founders believe Hubbub could become a new broadcasting channel by giving messages a higher chance of being heard. Their goals are to standardize online sound hosting and reach 1 million then 15 million accounts through a freemium business model with contextual advertising.