The Karst Information Portal (KIP) is a digital library initiative linking scientists, resource managers, and explorers with quality information resources concerning karst, an understudied natural environment that is crucial to the health and well-being of one out of every four people on Earth. Beginning in 2006 as a partnership between the USF Libraries, the National Cave & Karst Research Institute, the University of New Mexico Library, and the Union Internationale de Spéléologie (UIS), KIP has expanded to include databases concerning cave minerals, speleothem dating, and coastal cave surveys. This presentation outlines the evolution of the project and describes ongoing developments in our mission to advance information integration and collaborations among karst researchers, a community defined by a globally distributed and highly interdisciplinary knowledge base.