http://www.ndsu.edu/pubweb/~rcollins/242photojournalism/historyofphotography.html
http://indiandigitalartists.com/portrait-photography/most-famous-portrait-photographers/
http://www.bandwmag.com/
landscapes
sem
http://hubblesite.org/gallery/album/the_universe
http://hubblesite.org/gallery/album/solar_system
http://hubblesite.org/gallery/album/nebula
http://www.picturecorrect.com/tips/top-10-most-famous-photographers-of-all-time/