Schoola, one of the world's biggest fundraiser, decided to use Facebook to promote it's cause, offering grants to schools which are under-funded and cutting down costs by reducing student activities. The aim of the application was to offer grants of $2,000 to 10 schools, which might be under-funded due to several reasons.
In this application users can type in the name of a state and school to check how much funding has been cut for that particular school. They were then asked to add their school to the list of possible grant winners.
The application stood for something extremely important and thus generated an excellent response from a large number of users, who were interested in helping out under-funded schools.