The global market for cloud computing will grow from $40.7bn (£24.7bn) in 2011 to more than $241bn (£146bn) in 2020, according to a report from analyst firm Forrester called Sizing the Cloud.

These figures represent both public and private sectors of the cloud-computing market.

Interestingly, the report argues that the public cloud infrastructure-as-a-service model, pioneered by the likes of Amazon with its EC2 offering, will reach a peak of $5.9bn (£3.5bn) in global revenues by 2014, then enter a period of significant commoditisation, price deterioration, and margin pressure.

As a result, between 2014 and 2020, this market will decline, and revenues will stand at an estimated

Source: http://www.computing.co.uk/ctg/news/2045974/cloud-market-total-gbp146bn-2020-forrester#ixzz1KiDMjSZI