National Geogaphic Virtual Library Logo National Geographic Virtual Library
National Geographic Virtual Library provides full access to every issue of National Geographic magazine from 1888 to the present, as well as National Geographic Traveler magazine (2010-present). You can also read full-text versions of National Geographic books online, and view additional maps, images and videos.
Salem Science Logo Salem Science
A large online database that contains the complete content of printed reference sets including information about the applied sciences, earth science, environmental issues, global warming, forensic science and astronomy.