NextScripts SNAP - A WordPress plugin that can publish posts to to social networks as nicely formatted messages. Works with profiles, business pages, community pages, groups, etc.
Kickstarter - Kickstarter is the world's largest funding platform for creative projects. A home for film, music, art, theater, games, comics, design, photography, and more.
Webmention.io - Webmention.io is a hosted service created to easily receive webmentions on any web page.
FreeFunder - Free crowdfunding platform with no platform fee and donates to your fundraiser based on shares!
Bridgy - Bridgy pulls comments, likes, and reshares on social networks back to your web site. You can also use it to post to social networks - or comment, like, reshare, or even RSVP - from your own web site. https://brid.gy/
GiveForms - Your Go-to Digital Fundraising Platform