i was going to write an entry...
Sparql interface. Dump all your RDF documents from your site into one place, then get a sparql query engine running over it. Suddenly, you can ask all the stuff you want about documents and get answers back . This seems like a cool way to get people to see that RDF can be cool: Simply create a simple browser plugin that knows where a SPARQL interface is (maybe from auto something something) and it doesn't have to od the full parsing of the RDF results, just some XML parsing . This makes the whole dealing with RDF in the browser simpler.
Also, there's no fetch of tons and tons of data: it's all tored in the query engine, and you can get the answers you need, and only the answers you need. I dunno. this might not even work. I don't have a clue: I'm sick and tired and blah blah blah. but it's something I want to write about.