It's very hard to get paid by colleges. It's a kind of enterprise sales, with the usual problem that the decision makers have little contact with the end-users

It's very hard to get paid by colleges. It's a kind of enterprise sales, with the usual problem that the decision makers have little contact with the end-users of the software. So having better software doesn't help you make sales. The industry gets dominated by companies that are great at sales and not very good at making software. If your software is so jaw-droppingly awesome that professors will pay out of their own pocket, you can make some money that way. But not a huge amount of money. You may be better off making the website free, and making money some other way. Charging employers to show job postings can make money, if the students are in high demand.