How to buy Promoted Tweets

Twitter announced its new ad serving platform; Promoted Tweets.

The details can be found on;

• NY Times article “Twitter Unveils Plans to Draw Money From Ads”
• AdAge article “Twitter Has a Business Model: ‘Promoted Tweets’ “
• TechCrunch article “Full Details On Twitter’s Long-Awaited Ad Platform: Promoted Tweets”

These articles state that, initial ad partners include Best Buy, Virgin America, Starbucks, and Bravo. It seems like you can not advertise without being a partner yet.

How to buy Promoted Tweets is still a question mark. Please share, if you have any information on “How to buy Promoted Tweets”.