A cool piece from WSJ:

In just the past few months, Virginia has authorized 13 new online schools. Florida began requiring all public-high-school students to take at least one class online, partly to prepare them for college cybercourses. Idaho soon will require two. In Georgia, a new app lets high-school students take full course loads on their iPhones and BlackBerrys. Thirty states now let students take all of their courses online.

Nationwide, an estimated 250,000 students are enrolled in full-time virtual schools, up 40% in the last three years, according to Evergreen Education Group, a consulting firm that works with online schools. More than two million pupils take at least one class online, according to the International Association for K-12 Online Learning, a trade group.

Although some states and local districts run their own online schools, many hire for-profit corporations such as K12 Inc. of Herndon, Va., and Connections Academy in Baltimore, a unit of education services and technology company Pearson PLC. The companies hire teachers, provide curriculum, monitor student performance—and lobby to expand online public education.

It’s all part of a burst of experimentation in public education, fueled in part by mounting budgetary pressures, by parental dissatisfaction with their kids’ schools and by the failure of even top-performing students to keep up with their peers in other industrialized countries. In the nation’s largest cities, half of all high-school students will never graduate.