Description: Blather is an open-source microblogging software that allows users to post short updates similar to Twitter. It is developed in Ruby and designed to be simple, flexible and easy to setup.
Type: software
Pricing: Open Source
Description: SemanticScuttle is an open source social bookmarking web application similar to Delicious. It allows users to bookmark web pages and tag them for easy sorting and filtering. SemanticScuttle organizes bookmarks through user-created taxonomies.
Type: software
Pricing: Free