If you are going to be a photographer, it is a good idea to be well informed about the history of photography! There are many different websites to turn to although, I wanted to bring your attention to one in particular that was created by a professor at the College of DuPage in Illinois. Introducing the "History of Photography Podcasts: Class Lectures with Jeff Curto."
Curto's lectures are uploaded as Podcasts and were recorded in his classroom. Although these lectures are mainly intended for his students, they have helped many people learn about the history of photography. For each of his lessons, he also provides slides, handouts and additional information to help the students learn the material.
Curto, Jeff. "Photo History – Class 15 Spring 2014 - Photograph as Document, Concept as Photograph." History of Photography Podcasts. N.p., n.d. Web. 23 July 2014.