googling for "RDF" and "modified date" I found this great website listing some military gear. Some of them have RDF, but probably no triples. I want the underwater jet propulsion system, because it lasts as long as my O2!

and finally, this list helps Dr No. and Blofeld to estimate their expenses when building a secret retreat....

a quick and dirty tagging scheme - another reincarnation of the thing that is known as folksonomies. flickr, etc.
What I like about this one is that is wants to embrace "the web" as a whole.

an example tag, to get you started:

http://www.technorati.com/tag/www2005