At 26 million articles and growing, knowledge extraction from biomedical literature is an important big data problem. Mark2Cure trains citizen scientists to help tackle this problem in order to facilitate research on a rare disease known as NGLY1-deficiency. Learn about biomedical terms, biological processes, fascinating diseases, genes, and drugs from the same sources that scientists use--all while helping organize information relevant to a rare disease that makes children unable to shed tears when they cry. Training is provided via an online tutorial, and there is NO cost to participate. If you can READ, you can HELP