Below are a few companies that currently offer free college-level instruction to anyone with an internet connection...
Coursera is a social entrepreneurship company that partners with the top universities in the world to offer courses online for anyone to take, for free. We envision a future where the top universities are educating not only thousands of students, but millions. Our technology enables the best professors to teach tens or hundreds of thousands of students.
Udacity was founded by three roboticists who believed much of the educational value of their university classes could be offered online. A few weeks later, over 160,000 students in more than 190 countries enrolled in our first class, "Introduction to Artificial Intelligence."
EdX is a not-for-profit enterprise of its founding partners Harvard University and the Massachusetts Institute of Technology that features learning designed specifically for interactive study via the web.