Learning resources and free online classes

Recently I've been studying to test out of some of the general education courses in my degree. Along the way I've found some great resources to peruse or maybe for use in homeschooling.

• http://education-portal.com/articles/5_Universities_Offering_Free_Health_Courses_Online.html
  
• http://www.hoagiesgifted.org/online_hs.htm
  
• http://www.montereyinstitute.org/nroc/nrocdemos.html