Humble Bundle, a charitable organization and IDW Publishing have been offering a Humble Comics Bundle where paying what you want ($1 USD and up) for Ghostbusters comics not only gets you digital Ghostbusters comics, donations go to Traveling Stories.
If you’d like to donate, the IDW Ghostbusters comics bundle is ending sooner than later. If you already have most to all of IDW Publishing Ghostbusters comics, also check out Traveling Stories to learn more about their organization.
Sources:
ghostbusterscities.com 