The Who, Why and How of Twitter

The seemingly slow evolution of Twitter frustrates some but its simplicity and immediacy as an open texting service on steroids continue to keep it  top of mind in popular digital culture.

Its embedding in the new Apple iOS5 mobile operating system  has stimulated growth and increased sign-ups by 300%.

The real point of interest to watch with Twitter in 2012 will be to see if it rolls out a self serving ad platform that monetizes its network or whether it will work out another way make its 200 million plus users a revenue machine rather than a money pit!