One potential source of income, according to Coursera’s co-founder Andrew Ng, is for online providers to act as recruitment agents, introducing MOOC students to employers – something Udacity already does. Others may include advertising, or optional charges to students for "premium services", such as personal tuition.
This can be a great networking campaign. If prestigious colleges start offering free MOOC's and students start to realize that they too can complete and become successful with online learning they may be more apt to apply and enter online programs at the universities. Not only is it a win-win scenario, but students at the end can benefit. Universities now understand that with the increasing competition it is important for them to get their names out there to the masses before another university does.