Students and researchers have come to rely on computer-based reference management software to organize their growing collections of reading material and to properly format citations and references in research papers, grant applications, and other documents. It is no longer adequate just to store these collections on a desktop or laptop computer. Users need access to their personal digital libraries on the go, on smartphones as well as tablets. This column in the Journal of Electronic Resources in Medical Libraries provides an overview of mobile citation management software. Citation management applications and mobile-friendly websites are described.