Cloud computing market sector is way, where you can buy computing power from the companies. You can imagine a situation when you need for your work a lot of computing power, for example when you rendering videos. Thanks to cloud computing, you don’t need own expensive computers. You just buy exact computing power for this process. Problem is the same like in case of cloud storage that this segment is under control giants like Microsoft or Amazon. They can raise up the price when they want and everything stands on the trust between you and company.
The solution in the short future will be that you can buy this computing power from the decentralized cloud computing service, where can people sell computing power to each other. Price will depend on the bid and ask between users in the network. For more details explore projects in this sector.