Discuss the factors that contributed to the start of the first world war?

Was the was ineveitable after the assassiantion of the archduke Franz Ferdinand?

Since this is not my area of expertise, I searched Google under the key words "'World War I' causes" to get these possible sources:

http://www.schoolshistory.org.uk/causesofworldwarone.htm
http://www.firstworldwar.com/origins/causes.htm
http://www.cusd.chico.k12.ca.us/~bsilva/projects/great_war/causes.htm
http://www.historyonthenet.com/WW1/causes.htm
http://www.infoplease.com/ce6/history/A0862003.html

I hope this helps. Thanks for asking.