FreeLists
FreeLists provides the internet community with Free, no-hassle, high-quality mailing lists
21 Alternatives To FreeLists
Aether
Aether is a free app that you use to read, write in, and create community moderated, distributed…
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.
Eventbrite
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Framalistes
Create email discussion lists
Gaggle Mail
Gaggle Mail is a simple and easy to use email list manager.
GroupSpaces
Free Group Website, Membership Database, Listserv Mailing List, Online Group Management Software : GroupSpaces
Librelist
Librelist is a free as in freedom mailing list site for open source projects
Mailman
Mailman is free software for managing electronic mail discussion and e-newsletter lists.
Meetup
Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
QuickTopic
Free hosted message boards, public or private. E-mail enabled.
Seat
Modern team communication and collaboration
Slack
A messaging app for teams who see through the Earth!
Sympa
Sympa is an open source (GNU GPL) mailing list management (MLM) software.
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.
Yahoo! Groups
Online discussion boards from Yahoo!