The Perl RDF project provides:
A new foundational framework is underway, see Attean, where we aim to take advantage of new role-based programming techniques.
We have wiki for collaborately exploring new ideas.
Please subscribe to the perlrdf mailing-list and get in touch! There is also an IRC channel.
|...and many more of differing relevance and maturity.|
There is also the slides of a 15-minute introduction.