Rice is a Ruby implementation of the Information and Content Exchange (ICE) protocol. It implements an ICE syndicator (publisher) and ICE subscriber. Rice may be useful as a reference implementation or a public syndicator for testing.
Based on the Jakarta Struts project, the Ruby Web Application framework is a framework for developing web/wap applications founded in the Ruby programming language.
Boards on Rails or BOR is a Forum software built on the Rails framework of Ruby. It's aims are to be a simplistic piece of Software that can be easily customized in terms of plug-ins, template creation...etc.
Pakada takes new paths in creating and maintaining dynamic web content. It doesn't provide hardcoded modules, it let's you build them yourself within your browser, though it still ships with a handful of presets. Pakada is based on Ruby on Rails.
reputron is a knowledge extraction engine platform that covers all aspect of text mining, relevance, indexing and querying on a corpus of text documents.