Groups.io
Email and web based discussion group software, includes archiving, emails, wiki, polls, file…
22 Alternatives To Groups.io
Astraweb
Premium Unlimited Usenet news server services.
Basecamp
A simple and elegant project management system. Basecamp is more than just a project management tool — it’s a better way to work. Teams that switch to Basecamp are more productive and better organized.
Carrd
Simple, responsive one-page site creator.
Community Box
Easily create beautiful directories
Discourse
Discourse is an open source discussion platform built for the next decade of the Internet.
Framalistes
Create email discussion lists
FreeLists
FreeLists provides the internet community with Free, no-hassle, high-quality mailing lists
Gaggle Mail
Gaggle Mail is a simple and easy to use email list manager.
Giganews
Giganews is the world’s best Usenet provider. Offering the world’s highest quality retention and fastest speeds. Sign up for a free 14 day trial.
GroupSpaces
Free Group Website, Membership Database, Listserv Mailing List, Online Group Management Software : GroupSpaces
Mailman
Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Mighty Networks
Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
Milo
Shake to instantly meet community members near you
MyBB
MyBB is a discussion board software that runs on PHP and MySQL
Seat
Modern team communication and collaboration
Slack
A messaging app for teams who see through the Earth!
Trello
Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.
Vingle
Mingle with people who share your interests
Yahoo! Groups
Online discussion boards from Yahoo!
vBulletin
Build a community website with the leading forum software, vBulletin 5 Connect, or in the cloud on vB Cloud!
winio
The fastest way to sync your team with ongoing projects