Cancer Commons is a patient-centered resource and data sharing network that invites patients, researchers and clinicians to donate data in open science collaboration in order to create a “Rapid Learning Community”. The organization makes all of the collected data available to scientists working at over 20 cancer centers across the nation as they develop personalized therapies for patients as well as making personalized data and resources available to the patients who donate data and their caregivers. Researchers participate by contributing data and using the pooled data to help develop molecular models that delineate subtypes of cancer, diagnostic tests, therapies and clinical trials for treatment as well as a database of potential biomarkers, treatments and outcomes. Physicians who participate are able to share case reports and patient data, as well as the opportunity to analyze and comment on the information being generated by researchers working with the pool of data. While the organization is collecting data on all types of cancer, the currently supported types include Lung Cancer, Melanoma and Prostrate Cancer.