Fundraise Up - The New Standard for Online Giving
GumHub - Sell access to your GitHub repos with Gumroad
Cheddar Up - Collect Money From Groups
Gumroad Memberships - Earn your audience's ongoing support
IssueHunt - IssueHunt is a crowd funding service for opensource contributors and owners!
Sup! Standup Bot - The complete stand-up and follow-up bot