The National Library of Medicine has added The Joshua Lederberg Papers to Profiles in Science, a Website dedicated to "the major scientific achievements of the twentieth century" (described in the September 25, 1998 Scout Report). An esteemed American geneticist and microbiologist, Lederberg won the Nobel Prize in 1958 for his work in bacterial genetics. At the site (and in various formats), viewers will find biographical information and short essays on Lederberg's research, as well as links to digitized research documents and photographs. All information (including laboratory notebooks) may be browsed chronologically, alphabetically, or located via a local search engine (by text string). As more Lederberg papers become digitized, they will be added to the site.