But Bit.ly and TinyURL are rather generic. To spice things up, why not make your URL short and shady?
ShadyURL takes benign web addresses and makes them look downright dangerous.
"Don't just shorten your URL, make it suspicious and frightening," ShadyURL advises, adding that you can '[make] your Twitter followers a little more uneasy."
(LaughingSquid have some other LOL-worthy examples.)
ShadyURL might not be much of a space-saver, but it certainly adds some levity to otherwise mundane Web surfing.