Crazy Hank Green gives an amusing explanation of both the light-dependent and -independent reactions of photosynthesis in this 13:15 minute YouTube video.

Find out what the reactions have to do with putting children in a closet (!) in this 6:35 minute YouTube video from brightstorm2.

Use your textbook along with this animation to get the gist of the light reactions. A 5:03 minute YouTube video from NDSU Virtual Cell.

A 5:37 minute animation of the Calvin Cycle (light-independent reaction) from Ted-ED.

A straightforward explanation of photosynthesis with excellent diagrams from Nature Education.

Could proton gradients be related to the origin of life? Find out how in this 2010 article by Dr. Nick Lane.

Was the evolution of photosystem II an important step in the development of photosynthesis? An Arizona State University team reports their lab results in this 2012 article from ScienceDaily.com