How to monetize Twitter?

Twitter.com is a microblogging platform. We can communicate with friends and coworkers. In this article I will say you, how can you monetize Twitter.

1. Commercial tweets. When some updates are ads... You can build website as One Million Tweets: you can add your update for $1 to somebody's Twitter.
2. Commercial Twitter. When you will keep your microblog private and somebody's will pay for reading your Twitter.
3. Promote your products. You can inform about your websites, blog, products, newsletter, affiliates. Remember to give value things, in other way people won't follow you.
4. Commercial themes. You can get money for ad in your background image. You should have many followers and new gosts. Why? Followers read your updates in the dashboard and they don't see ad-background.
5. Twitter apps. People on Twitter like tweet applications. You can buid mlm or other system, which you will promote by Twitter.
6. Articles, reports, e-books. Twitters like to read about this microblogging platform. Give them great value texts! You can buy it in the Internet with license to resell.
7. Coworkers. In the Twitter you can find smart people, marketers, entreprenuers. It's ideal way to coworking!

If you have other ideas, place them in comment.