http://observe.arc.nasa.gov/nasa/exhibits/tsunami/tsun_bay.html
Tsunami - Big Wave - learn about the causes of tsunamis, find out about some of the most recent ones, and do a wordsearch or take a quiz to test your knowledge.

http://www.tsunami.org/picofthemonth.htm
Tsunami Photograph of the Month - see this and previous month's photos from the Pacific Tsunami Museum.

http://www.nationalgeographic.com/ngkids/9610/kwave/
Killer Wave! Tsunami - learn about a different kind of sea monster, the tsunami. Read one survivor's account of her encounter with one and find out how they form. From National Geographic.

http://www.thirteen.org/savageseas/neptune-main.html
Savage Seas: The Crow's Nest - explore the power of waves including tsunamis, freak waves, winds of trade, and more! Check out the wave machine and video clips from this PBS TV show too.

http://www.pbs.org/wgbh/nova/flood/
Flood - NOVA Online - get all sorts of information about the Midwest flooding.