Businesses are gradually moving to the cloud. It has taking time, but a lot more business will accept cloud computing in the coming years. The global cloud computing market is expected grow from $40.7 billion in 2011 to more than $241 billion in 2020, according to new Forrester forecast data reported in Sizing The Cloud by Stefan Ried, Ph.D. and Holger Kisker, Ph.D.

The infograpahic below analysis the state of cloud computing from 2001 to 2013.