Twitter’s business model is starting to show. An early sign came in April, when the popular microblogging service launched in Japan and the home page for every Japanese user included a big banner ad in the top right corner.

next, on Aug. 7, Twitter made another change, that duration in the U.S., by limiting the number of society a singled-out user could connect with, or “follow,” to about 2,000. Most recently, on Aug. 14, Twitter made the biggest

move yet to slash costs. It killed outbound notice delivery to mobile phones via short notice, or SMS, in all countries except the U.S., Canada, and India.

Taken together, these moves point to the trouble with Twitter. Investors and marketers have been agog by the potential for Twitter — unlike other social media properties, such as Facebook and MySpace — to crack the cipher, finally, on wringing revenue from millions of users. […]

Orginal post by dhiram