Congrats, now here's where the bummer is. There are only a couple of major categories of scholarships. The biggest slice of the pie is socioeconomic related, and gets heavier on the socio side every year. Next up is merit based. Straight up will the university, or an outside group give you a scholarship to join their ranks because of your smarts (these still can lean heavy on the socioeconomics). The smaller categories are local scholarships, parents company related, etc.

If your son got national merit finalist, it gets way easier to get merit scholarships.

If your son is caucasian, heterosexual, and christian he'd be better doing a cursory glance at the scholarships and then just go get a summer job mowing lawns or doing other work. If you're even somewhat successful, FAFSA is going to look at you and tell you to pay up.