http://www.stat.ufl.edu/vlib/statistics.html

http://www.execpc.com/~helberg/statistics.html

http://www.stats.gla.ac.uk/cti/links_stats.html

http://asa.ugl.lib.umich.edu/chdocs/statistics/stat_guide_home.html

http://www.stat.wisc.edu/statistics/consult/statbook.html

http://hardwick.ukc.ac.uk/cgi-bin/hpda.exe/mff/netres/statlist.html

http://claymore.engineer.gvsu.edu/~garrettr/spc/

http://member.aol.com/johnp71/javastat.html#Power

http://lib.stat.cmu.edu/