Twitter is becoming more and more a real-time public publishing medium.  In this respect, many companies start to have a presence in the twitter universe (twitterverse).

There are discussions on mechanism for Twitter to make money by charging for  business use.  I am not certain how it could easily done without getting user backslash.  It will be hard to distinguish between private and commercial use.

I would recommend Twitter to charge users based on the same principle as the domain name business like godaddy.com and all there registrars.  Domain name inside Twitter will become more and more valuable.  Hence, these domain names could be traded later.  To keep your domain name up and running inside Twitter, you will have to pay, let say $9.95  per year.  This amount is quite cheap and most will certainly pay to keep their presence inside Twitter.

/@realwat

My profile on twitter.