Here is a list of web-based tutorials on human subjects protection: 

(Note:  some of these sites request an annual fee)

1. National Institutes of Health, http://ohsr.od.nih.gov/cbt/
2. National Cancer Institute, http://cme.nci.nih.gov/
3. University of California-Irvine, http://tutorials.rgs.uci.edu/   (license available)
4. University of Minnesota (Informed Consent), http://www.research.umn.edu/consent/   (***Very good site!)
5. University of Indiana, http://www.indiana.edu/~rcr/
6. University of Miami, http://www.miami.edu/UMH/CDA/UMH_Main/1,1770,6460-3,00.html (annual fee)