Complex sentence: Kune is is a free/open source software framework centered on online real-time collaborative editing, decentralized social networking and web publishing, while focusing on workgroups rather than on individuals.
Split into simpler sentences: Kune is is a free/open source distributed social network focused on collaboration rather than on communication. That is, it focuses on online real-time collaborative editing, decentralized social networking and web publishing, while focusing on workgroups rather than on individuals.