For some time I have been stealing an hour here and there for the rrdf package for R. This package is based on Apache Jena and allows reading and writing of RDF triples, as well as doing local and remote SPARQL querying. BTW, rrdf is not only R package to provide SPARQL functionality, and another package will be demoed at SWAT4LS.
It took me some time to get around to it, but I finally set up a vignette with Sweave for this package, but here it is, explaining some basic functionality of the package, just in time for #swat4ls:
So, with a week or so, I used <iframe> in the blog a few times now. The above one is being served by Google Drive.