The document discusses the Biodiversity Heritage Library (BHL), which aims to make biodiversity literature openly accessible. It notes that biodiversity information exists within a complex "knowledge ecology" of various organizations, individuals, data flows, and more. The BHL seeks to digitize the core literature on biodiversity and make it openly accessible to fit within this dynamic knowledge system. It provides details on the BHL's global scope, members, digital collections, and efforts to ensure long-term preservation of content.