A business model for Twitter: Pay up

Ben Huh can has successful business model?
The CEO of ICanHasCheezburger.com has some surprisingly sound business ideas, considering he's a guy who makes his money off dorky photos of cats.

JBoss moves to the cloud. Will open source go with it?
Red Hat has been moving some of its services to the cloud. Is this a new, viable open-source business model?

Twitter reportedly closes $15 million funding round
Though it still lacks a business model (except in Japan), the geek staple continues to gain more traction--and now, according to reports, an $80 million valuation.

Will cash back boost Microsoft's search?
The software maker is hoping that a business model long used by bargain hunter sites will have broader appeal to consumers and marketers.

Canadian media company buys Auctomatic for $5 million
If you've been around the Internet long enough, you're bound to see a business model or two come back around. The business of domain-name roll-ups--once hot in the dot-com boom--are the...