http://librdf.org/A C library that provides an implementation of the RDF model, allowing it to be manipulated, queried and stored via APIS in Perl, Python, Tcl and Java.is a set of free software C libraries that
provide support for the Resource Description Framework (RDF).
libraries and APIs for manipulating the RDF
for graphs in memory and persistently with Sleepycat/Berkeley DB, MySQL 3-5, PostgreSQL,
Support
waiting for hand_moderationRedlandRDFLibrariesLibrary and Information Science > Technical Services > Cataloguing > Metadata > RDF > Tools
A Java system for RDF providing support for manipulating RDF models, parsing RDF/XML and N3, persistent storage with Sleepycat DB and many SQL backends, querying using RDQL and inference support.