Accredited Online Schools Offers a masterlist of information regarding fee waivers and fee waiver eligibility as well as an interview with an admissions expert who gives advice on how to apply.
College Board- BigFuture An FAQ on fee waivers that goes into detail about how many CollegeBoard offers, how to apply, and which colleges will not accept waivers.
College Board- BigFuture A search engine that allows you to search up the schools you are interested in and find out if they accept CollegeBoard fee waivers.