ActiveRDF gives you a domain specific language for your RDF model: you can address RDF resources, classes, properties, etc. programmatically, without queries.

ActiveRDF can be used with various RDF stores, adapters to other stores can be written very easily. ActiveRDF uses convention over configuration, which means it works very nicely in 90% of the cases. ActiveRDF is still in very young stages, and is in active development. It probably contains a lot of bugs. ActiveRDF is open source, released under the GPL license.

See http://activerdf.org/ for more information.