bit.ly

Several businesses have sprung forth thanks to Twitter's 140-character limit on status updates, or tweets. Twitter engineer Raffi Krikorian announced that this would all change over the next few months, in an apparent move to protect users from spam and malicious links.

URL address shortening Website tr.im will no longer be providing the service to the public because there's no money to be made. Makes you wonder how other URL shortening companies can survive. "There is no way for us to monetize URL shortening -- users won't pay for it -- and we just can't justify...