At Chirp, Twitter’s CEO Evan Williams, confirmed plans to launch its own link shortener “it would be “stupid” not to add native link-shortening capabilities into Twitter, since most Twitter clients already have that feature. We want to solve that problem. Everyone else has solved that problem. We’re probably not going to give people a choice. If they want to use a different shortener, they can use a different app,” said Evan. It isn’t clear how the new feature will affect bit.ly, Twitter already owns its own short URL, twt.tl, which it uses as an anti-spam mechanism in direct messages. But it also owns Twee.tt, which’s more in keeping with its brand since it already uses Tweet throughout its product. Also, Amazon has launched it’s own shortened URL, amzn.to, powered by bit.ly’s Pro service. Twitter’s default (for now) URL shortener has 6,000 corporate clients, including Amazon. Every Amazon link and every product in the online marketplace can now be shortened to an amzn.to url.