February 14th saw the launch of SpotCloud, the world's first spot market for cloud computing. It works much like other spot markets. Firms with excess computing capacity, such as data centres, put it up for sale. Others, which have a short-term need for some number-crunching, can bid for it. Enomaly, the software firm behind SpotCloud, takes a cut of between 10% and 30%, depending on the size of the deal.