Patreon Developer - Funding the arts across the web with Patreon's new API
Patreon - Patreon enables fans to give ongoing support to their favorite creators.
Drip by Kickstarter - A new way to back creators. A Patreon competitor.
Tipeee - "Tip" the creators you like.
Liberapay - Liberapay is a recurrent donations platform.
Open Collective - Recurring funding for groups.