Oncolex.org is a free, web based, comprehensive resource for cancer diagnostics, treatment and supportive care. The aim is to supply health care providers worldwide with updated and detailed information on cancer care sourced directly from acclaimed medical specialists. Oncolex contains extensive material for each cancer type including illustrations, animations, photos and video footage. Oncolex.org was launched at the annual GAP Conference in Oslo on May 15, 2012. It is a resource in continual progress, as it keeps track of novel procedures and cutting edge technology transforming the field of cancer diagnostics and treatment.