CompuHigh has been around longer than many of the new breed of online high schools and has stood the test of time. I encourage you to take a look.

Southern California Virtual High School is a free online high school located in California. It is part of the Advanced Academics group of schools.

Riverside Virtual School is a free online high school located in Riverside, California. It offers online courses to students in Southern California.

21st Century Virtual Academy is a new online high school to open this fall in Golden, Colorado.

Since we only had five online high schools listed for Canada, I am happy to add a sixth: Saskatoon Cyber Catholic School. Kudos to our neighbors to the north for making online education available to Canadian high school students.