Kissflow - Kissflow is a workflow tool & business process workflow management software to automate your workflow process. Rated #1 cloud workflow software in Google Apps Marketplace.
Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
Process Street - Create beautiful rich process documents in a simple to follow checklist format. Fast, free and incredibly simple to use.
Galette - Galette is a membership management web application towards non profit organizations.
Pipefy - Pipefy is a process management software that empowers anyone to create and automate efficient workflows on their own without code.
Bigtent - BigTent is a web-based organization and communication portal for groups.