Francois Belleau presents the different aspects of Linked Data and answer th following questions : * What is Linked Data ? * What is a Triple ? * What is RDF ? * What is SPARQL query language ? These are the links used during the presentation : http://delicious.com/fbelleau/bh2010:primer You can also follow this tutorial to play with RDF and SPARQL: http://www.semantic-systems-biology.org/biogateway/tutorial