Interesting article, and a chance to test the PressThis bookmarklet for WordPress 2.7:
Looking at how multi level marketers and business models that can extract value can have a major effect on Twitter, particularly as spam models only need a relatively small conversion rate, and people are so eager to retweet a message without examining it!

I find this very interesting. I have seen issues with this growing over the months and like a pimple on a high school kid’s forehead, it is getting ready to pop.