Full disclosure: Klaus is attending a public virtual charter high school next year. Wolfie and Xavier are considering public virtual charter middle school. While I think Wolfie would be better served by fully homeschooling and cobbling together our own system of virtual, community college and middle school classes, he definitely does not want me as a teacher. I can't imagine why not. I think he's afraid I'm going to turn into Galadriel when Frodo offers her The One Ring: "In place of the Dark Lord you will set up a Queen. And I shall not be dark, but beautiful and terrible as the Morning and the Night!... Look on me and despair!" LOL
Found another virtual school in Wisconsin in the Kiel Area District: http://www.kiel.k12.wi.us/kieleschool.htm
Unfortunately Open Enrollment is over for next year. They also offer information for people wanting to start their own charter school.
Some other links about charter schools generally:
Charter Schools about Social Justice, says Fuller -- http://www.wicharterschools.org/news.main.cfm?id=87
What is Chartering and Where Did It Come From? -- http://www.wicharterschools.org/news.main.cfm?id=89