数据中心
Google公司拥有分布全球的十几个数据中心，上百万台机器的集群计算，具体数目是保密数字
- L.A. Barroso, J. Clidaras, and U. Holzle, The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines, 2nd ed., 2013.
云计算平台
- Fox, Armando, et al. "Above the clouds: A Berkeley view of cloud computing." Dept. Electrical Eng. and Comput. Sciences, University of California, Berkeley, Rep. UCB/EECS 28 (2009): 13.