Here is a link to Robert Capa's Magnum Photo gallery. Capa was one of my favorite photographers
http://www.magnumphotos.com/C.aspx?V...RID=24KL535353
Capa's Spansh Civil War photos (despite the fact that his most famous - of the soldier getting shot - was likely faked in one degree or another) were really great both as action war imagea and human interest images.
This Wikipedia site provides links to the photography of a collection of great photographers
https://en.wikipedia.org/wiki/The_Family_of_Man