That's a great idea. We've been working on a way to do the same.
For now, in order to get the word out, we participate in the annual College and Career Fair held in November. The students are brought in by bus loads for two days, and some wander in on their own with their parents. We set up a booth with flyers and brochures about sororities and going greek, and we decorate it with all greek items from all the NPC sororities represented here in Hawaii. We have the girls that stop by fill out an information card, and then mail scholarship information to them later. We also note the school they attend and send information to their counselor.
You may want to check into any college fairs in your area. It's a great way to reach a whole lot of students without having to travel too far
Aloha,
Mai Ly