Grafedia looks like a cool service. It’s not unlike tinyurl but for embedding “links” into graffiti so you can access associated content on the net. An interesting note is that many of the classic shock sites are detected by some of the url shortening/re-directing services. So were someone to link to something disturbing (such as the Goatse picture, to which I will not link) tinyurl will warn the user before it takes them there. It’s been a classic technique of trolls on slashdot (where the domain of a link is printed after it revealing where it’s going more obviously) to get people to click on tinyurls but now this avenue is somewhat closed. I somehow doubt they will stopped so easily.