Guide for understanding Basic Stats http://www.nilesonline.com/stats/
Stats Tutorial http://www.statistics-help-online.com/node53.html
Another Stats Tutorial http://www.chem.utoronto.ca/coursenotes/analsci/StatsTutorial/BasicStats.html
Practical Statistics for the Social Sciences http://www.practicalstats.com/
Soft Statistics, great glossary of terms http://www.statsoftinc.com/textbook/glosfra.html
Ask Dr. Math, glossary of terms and interactive response team http://mathforum.org/library/drmath/sets/select/dm_stat_glossaries.html
Google Directory Site, multiple sources http://www.google.com/Top/Science/Social_Sciences/Psychology/Research_Methods/Statistics/
Multiple Statistical Resources with Tutorials, multiple sites to scroll through http://core.ecu.edu/psyc/wuenschk/Statistics.htm
Simple Regression http://www.socialresearchmethods.net/kb/genlin.htm
Regression to the mean http://www.socialresearchmethods.net/kb/regrmean.htm
T test http://www.socialresearchmethods.net/kb/stat_t.htm
Factorial Design http://www.socialresearchmethods.net/kb/expfact.htm