Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
Anchor.fm - Record bite-sized podcasts that anyone can join ⚓
Membee - Membee is web-based membership management software.
ZCast - Live interactive podcasting with your Twitter followers
Galette - Galette is a membership management web application towards non profit organizations.
ReadBit - Read wisely & save time with text-to-speech audiobook reader