Here are some links to earthquake sites:

http://www.redcross.org/services/disaster/keepsafe/readyearth.html
American Red Cross instructions for how to survive earthquakes.

http://wwwneic.cr.usgs.gov/neis/bulletin/
This is a almost instantanious list of earthquakes that have occured. It also has some information about earthquakes.

http://www.fcs-net.com/biddled/past.htm
This is a nice site about past major earthquakes.

http://www.crustal.ucsb.edu/ics/understanding/
This site has nice information about earthquakes.

http://www.germantown.k12.il.us/html/earthquakes.html
Information about earthquakes, how they occur, how we measure them, and more.

http://walrus.wr.usgs.gov/docs/ask-a-ge.html/
This site is VERY good. If you have any earthquake question, it gives you a place to email to where a Geologist will answer your question!!

http://www.pbs.org/wnet/savageearth/earthquakes/index.html
A PBS site that has a lot of information on earthquakes.

More information about how/why earthquakes occur can be found [here]

More information about what an earthquake is can be found [here]

Information about major past earthquakes can be found [here]

More earthquake pictures can be found [here]

Information on how earthquakes are classified can be found [here]