Maybe Twitter did pay attention to some of the ‘how-twitter-should-monetize’ ideas floating around the web. The co-founder of Twitter, Biz Stone talks to Marketing Magazine on Twitter’s possible business model:

Co-founder Biz Stone told Marketing: ‘We are noticing more companies using Twitter and individuals following them. We can identify ways to make this experience even more valuable and charge for commercial accounts.’ He would not be drawn on the level of charges. Stone said it could also create revenue-generating features to tap into the way brands use Twitter as a hybrid marketing and customer-service tool.

Alley Insider recently held a contest to create Twitter’s Revenue Model, with the aim of helping Twitter find a revenue system and actually start making money. The contest was well received and the winner was announced, an ad agency. Here’s the winning group’s slide presentation:

Twitter Contest-Denuology Entry94 Update

Basically, their plan is to sell data and charge for access to users who can opt-in to do surveys and give feedback to companies. There are some reasons why it might not work as well as planned: