Data on all Debian packages is available as RDF via content negotiation from the Debian QA website. This uses the ADMS.SW standard. More background in this blog post.
RDFohloh is a RDFizer of Ohloh. It provides Linked Data from Ohloh. Using content negotiation, the RDF data can be founded serialized in XHTML+RDFa, RDF/XML and N3, and...