This document discusses the concept of a biodiversity commons, which would allow for the sustainable use of biodiversity data, information, and knowledge without jeopardizing ownership rights. It notes that biodiversity information is widely dispersed but weakly integrated. Several barriers to open access are discussed, including financial constraints due to rising publication costs, legal constraints on who can access and use certain information, and a digital divide limiting access for some groups. The document argues that free and universal access to conservation knowledge is important for effective conservation efforts.