http://astro.temple.edu/~ruby/ruby/
 Jay´s Ruby Home Page

http://astro.temple.edu/%7Eruby/wava/worth/worth.html
 Sol Worth´s Home Page

www.loc.gov/rr/print/
 Prints & Photographs Reading Room

http://don.ratcliff.net/video/
 Video and Audio Media in Qualitative Research

www.identidades.cl
 Identidad e Identidades: La construcción de la diversidad en Chile

www.precolombino.cl
 Museo Chileno de Arte Precolombino

http://memory.loc.gov/ammem/collections/finder.html
 American Memory Historical Photographs Collection

www.historyplace.com/unitedstates/childlabor/index.html
 Child Labor in America Lewis W. Hine