When peers refer to “the cloud” in cloud computing, it often seems a vague and intangible concept. It seems “the cloud” is a place somewhere around us, above us, or far away, that does not have shape, size, or touch. However, the cloud is very much tangible, as this blog post by Emily Anne Epstein shows – instead of a fluffy white shape, the cloud is very much made of cables, servers, and housed in entire buildings.