1. Charge for Twitter Message
Well you know your username is private and your friends can only receive your twitters. If you have important information and on time you may have a subscription-based service charging people who want to be your friend to access your twitters. A newspaper might do this to give you access to the news first. May be an blogger with online shopping deals could do that. The user will have to pay an amount per month or week to be in the know.
2. Sponsored Contest
Some of the advertisers want to run a contest via a popular twitter user in order to get feedback about their products. This can also be a strategy to create brand awareness. Get them for you. Suppose for a feedback ask What new things would the consumer like to see in the Product X.
3. Tweeting for Companies
There are a number of companies out there looking to join the realms of social media. Why not be a professional Twitter contributor for a company. The companies need professionals who are good at blogging, social media and search.
4. Paid Review
It's an idea for direct ad. But you need not suggest a product blindly. What you can do is some paid reviews. Say for instance you can do a paid review for services like SEO Services, Web hosting Services etc.
5. Micro Fundraising
Combine your microblogging with microfunding to make money. Look for the Twestival for that.
6. Affiliate marketing
This strategy is already used by a lot of affiliate marketing people. Send the links of websites in your tweets. Those subscribed to your tweets would be able to click on the links and be redirected to the web page.
7. Sell the Twitter apps
There are a myriad of professional applications for Twitter on web. Sell anything from Twitter analytics to Twitter CMSs such as the HootSuite (erstwhile Brightkit). The would surely like to pay for it.
8. Promote Music
There are great ideas for selling music online. Why not look for the Tra.kz. It offers an combination of a short URL service with a market place as well as a music community.
9. Ad in the blank space
At the end of your 140-character messages put an ad like Drink a refreshing COKE.
10. Twitter Consulting
There's a lot to know in twitter. This becomes easy only if someone tells you what you can do best in Twitter. If you are acquainted with the nitty-gritty of Twitter. Why not act as a consultant to companies who are looking for someone to acquaint them with twitter.
So start making money and keep feeding us with your ideas and inputs.
How-To Transfer Super 8mm Film To Your Computer on Howcast