Why is Following so important?
By Following a college, they indicate that they would like to earn scholarships from that college, learn more about them, and allow the college to learn more about them. They would be able to see what potential micro-scholarship dollars they would earn based on the achievements on your Portfolio.
Colleges have earning deadlines - a date when all senior Portfolios are submitted to that college. Learn more about them in this article (under Earning Deadline.)