To me, no one has fully cracked the code on social recruiting yet.
I'm going to start a lot of companies. These are not sham companies. These are great businesses.
Studying doesn't have to happen in a silo. It can be a social experience. You can engage with your friends and family to find out the answer to a tough question or have someone explain it to you. You can also study anywhere you happen to be and on any device.
Think about the way most companies currently hire. You post a job and then get blind resumes in response. This should be a social experience.
Any business that is looking for new customers needs to understand the Internet and how to market their goods or services through it.