Reaping the benefits of the semantic web

With little or know technical know-how beyond an ability to mention things like ‘rdf’, ‘linked data now!’ and ‘html5′ I’d like to work out how the Australian Memory of the World Register items can be linked to any relevant data on the WWW. This may be part of a bigger picture project to create a web of cultural collections data from around Australia (CRC bid?). I’d be happy to just get my brain around the concept of the mechanisms involved (social tagging, crowdsourcing, rdf?)