The Harry Potter Alliance (HPA) is a fairly young organization, having been formed only ten years ago.  Their premise is that the energy that fans put into their beloved media can also be used as a powerful force for change in the world.  Thus far they’ve harnessed that energy to get Warner Bros. to change their chocolate to 100% fair trade sources, sent five planes of supplies to Haiti after the 2010 earthquake, donated hundreds of thousands of books all over the world, and all sorts of other projects.

Helping them is a lot more straight forward than donating to Angel Tree- for the HPA you can donate, or join (or form) a local chapter to help them continue their good works on a local level.