Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Anedot - Powerful giving tools made easy for everyone
Event Hunt - Startups and Tech Events Curated By Locals
Tiltify - Streaming. Fundraising. Interact with your community for the causes you are passionate about.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Tithe.ly - Cloud-based solution to manage church donations.