pius

tamarind

Tamarind was designed to make it as easy as possible for developers to participate in the Semantic Web by exposing their data in accordance with applicable standards and ontologies. In particular, Tamarind targets developers using Ruby frameworks and ORMs.

sparql

Provides a parsing expression grammar for SPARQL and allows the user to interface SPARQL with arbitrary datastores.

curies

The Curies library implements the CURIE syntax for expressing Compact URIs. See http://www.w3.org/TR/curie/ for more information on the CURIE specification.

allourideas2

Version 2 of Allourideas

dm-semantic

Add-on to to enable Semantic Web goodness for DataMapper models.

connie

Connie is a constraint-based Ruby library that implements SPARQL given the parse tree of a SPARQL query and a set of RDF triples.

acts_as_unvlogable

An easy way to include external video services in a rails app.

pairwise2

Pairwise 2.0

youtube-g

An object-oriented Ruby wrapper for the YouTube GData API

all_our_ideas

Build Pairwise Comparison Websites

calais

A Ruby interface to the Open Calais API (http://opencalais.com)

dm-more

Extras for DataMapper, including bridges to DataObjects::Migrations and Merb::DataMapper

gets_satisfaction

Integrates your app with Get Satisfaction FastPass.

ooh-auth

A slice which extends merb-auth by turning your application into a full OAuth provider.

pairwise

Ruby on Rails Pairwise API

rdf-spec

RDF.rb plugin that provides RSpec matchers and shared examples for RDF objects.

reddy

Ruby-native RDF library

ruleby

the Rule Engine for Ruby

bookmarker

Bookmark external web pages, and save to your Rails App. Create a custom model, and save url, title and description. Works with restful_authentication to make sure only registered users can add bookmarks.

livedate

Rack middleware for Chronic

pairwise-docs

rack-trackbacker

Adds trackback capabilities to your Rack application.

RDFObjects

A simple Ruby DSL for creating and working with RDF graphs as regular Ruby objects

ruby-satisfaction

Access the Get Satisfaction API using Ruby

temporals

"We could develop some interpreter that would be able to parse and process a range of expressions that we might want to deal with. This would be quite flexible, but also pretty hard" (Martin Fowler, http://martinfowler.com/apsupp/recurring.pdf). Temporals is a Ruby parser for just that.