Twitter Prohibits In-Stream Ads

This morning Dick Costelo posted a statement to the Twitter blog announcing that the company would now prohibit in stream ads from third-parties. This will kill off a large number of third-party ad networks which were building business models based on exactly this. More specifically, “we will not allow any third party to inject paid tweets into a timeline on any service that leverages the Twitter API”.

If we’ve read this correctly, that means any other service that uses the Twitter API, such as Tweetdeck, seesmic, or any other company, cannot inject paid tweets into timelines within their applications.