Pictures of Martin Luther King, Jr. are available on the History.com and CBS News websites. These sites have galleries dedicated to images of King throughout his life.
History.com has a slideshow gallery that can be viewed in full-screen mode and set to automatically progress to the next image. Each picture has a brief sentence explaining what is happening in the picture. There are social media buttons on the page to share images.
CBS News has a large slideshow gallery of iconic King images. Every picture has a caption that describes the events in the picture and provides context to the user.