Twitter bans 3rd-party ad services

At TechCrunch’s Disrupt event today, Twitter unveiled TweetUp. TweetUp is essentially AdSense for Twitter. Now that Twitter has it’s own official ad service, they’ve decided to ban everybody else’s. I guess that’s just the way things work. Here is the official Press Release from COO, Dick Costolo:

"It is critical that the core experience of real-time introductions and information is protected for the user and with an eye toward long-term success for all advertisers, users and the Twitter ecosystem. For this reason, aside from Promoted Tweets, we will not allow any third party to inject paid tweets into a timeline on any service that leverages the Twitter API."