katchpole's campaign to get bank of america to stop charging a $5 debit card fee. stef gray took on student lender sallie mae. >> my issue is that sallie mae. if you are unemployed or underemployed and can't make your student loan payments, they charge a fee to prove you can't pay. they want me to pay $150 every three months to put my loans in forbearance. >> reporter: the petition went up in january and already it has 164,000 supporters. >> so far we've had a partial victory. before my campaign, the fee that they were charging was just an arbitrary fee-- it didn't go towards the student's debt whatsoever. now, they will apply the fee to your debt, but after they hold money in limbo, and require you to jump through a number of hoops. >> reporter: more than 15- thousand new campaigns are started on change.org every month. there are more than ten million active members. the organization has a staff of one hundred, which brings up the business model. >> you don't have to pay to sign a petition, so how does your site make money? we enable non profits to pay for sponsor