Working along with RDF data you can realize pretty fast of the need to store all that huge amount of information in some easy to query engine. Nowadays, there has been a huge explosion of several “so called” NoSQL databases, which are based in the idea of the flexibility of it’s schema free designs. But, RDF data and databases differ from this type of architectures, even when they share some aspects.
Anyways, I have found a pretty interesting article written by Arto Bendiken, a Cofounder of Datagraph, which describes the differences between these approaches. Pretty interesting article and clearly explained. It’s worth the read.
You can find the article here.