Description: Google Groups is a free discussion group platform from Google that allows people to have online conversations by email or on the web. It offers public and private groups to foster communication between specific teams, organizations, or wider interest-based communities.
Type: software
Description: TiddlyWiki is a free and open source personal wiki application that runs entirely in a web browser. It allows users to create richly formatted notebooks that contain notes, to-do lists, images, and links for organizing and sharing information.
Type: software
Pricing: Open Source