The Free Application for Federal Student Aid FAFSA used to be really, really, really tough to fill out. An estimated 1.5 million low-income students probably are eligible for federal aid but dont apply, in part because they find the process so daunting. The new FAFSA, often used by states and colleges to determine aid amounts, was launched Friday for the 2010-11 academic year. More than 90% of families apply online, and technology is responsible for most of the changes so far.