When we think of the National Library of Medicine, USA, we think of PubMed. But the NLM has so much more to offer. One interesting resource is – Open-i – a service that enables search and retrieval of abstracts and images from the open source literature, and biomedical image collections. This includes charts, graphs, clinical images, and more. You could search by text queries or even query images. Open-i provides access to over 1.6 million images from about 580,000 PubMedCentral articles and 7,470 chest x-rays with 3,955 radiology reports.