Thank you for using the Jiskha Homework Help Forum. Here are some sites on graphic organizers:
2. (part II): http://www.eduplace.com/kids/hme/k_5/graphorg/
4. (I like this one): http://www.ncrel.org/sdrs/areas/issues/students/learning/lr1grorg.htm
5. (all kinds): http://www.enchantedlearning.com/graphicorganizers/
This site has an excellent explanation and illustrations of several different kinds of graphic organizers.