11 Twitter business models: Vote for the best

Green tech year in preview
The outlook for clean tech in 2009 is solid, with money projected to go to start-ups. But the falling price of oil and the financial crisis have dampened the speed of technology innovation.

Vote Facebook for California attorney general?
Facebook's chief privacy officer is considering a run for California's state attorney general. Can he be trusted with the job?

Santa must be real, he's on Google Earth
Anxious Christmas revelers can track Santa's journey this year via Google Maps, iGoogle, "Santa Cam," mobile phones, and Twitter.

Twitter's hunting for a moneymaker
The microblogging service has put out a job posting for a "product manager" to focus on revenue generation. Thank goodness!

Twitter promotions can add up to millions
An executive from Dell has said that its "Twitter deals" have netted some nice extra revenue. Could this be more incentive for Twitter to launch corporate accounts?