The moment we have all been waiting for has finally happened. Facebook announced last week the addition of a donate now call to action button. Used well, this should be an exciting addition for nonprofits.
To learn more, check out this help topic on facebook.
If you go to your site and don't see the option, just hang on. It is being unveiled slowly to nonprofit organizations. For step by step instructions, check out this blog post by NP Tech For Good here.