A great article on the key role that phytoplankton plays at the bottom of the oceanic food chain:
http://discovermagazine.com/2004/aug/plankton-planet#.UWuhTIKTG3x
Another great article on the adaptability of phytoplankton:
http://www.sciencedaily.com/releases/2013/03/130308133057.htm
A massive archive of phytoplankton videos not to be missed:
http://www.planktonchronicles.org/en
