http://library.thinkquest.org/28327/main/universe/solar_system/planets/pluto/introduction_to_pluto.
html?tqskip1=1&tqtime=0428

http://seds.lpl.arizona.edu/nineplanets/nineplanets/pluto.html

Trip Through The Solar System

 http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/pluto.html

Planets - Zoom Astronomy