Coursera founders Daphne Koller and Andrew Ng don’t think small. Their Palo Alto, Calif., online-education company is less than two years old, yet it already has attracted more than 4 million student signups. Now Coursera has raised $43 million in fresh venture capital, tripling its cash available for growth.
Coursera is one of a handful of fast-growing startups (others include Udacity and EdX) that use the internet to provide free, college-level instruction. Subjects span everything from computer science to history, poetry and health-care policy.