1. A localization system, comprising: a plurality of localization components providing localized data that is localized to one or more distinct markets; a translation matching component that receives a localization request corresponding to input data to be localized, accesses the plurality of localization components based on the localization request, and selects and outputs localized data from one or more of the plurality of localization components based on predetermined criteria; wherein selecting the localized data comprises utilizing a computer processor that is a functional component of a computing device to evaluate an indication of an efficiency with which a particular item of localized data can be retrieved, and then not selecting the particular item as the localized data based on a determination that the indication shows that the efficiency is not sufficient in terms of quickness; and wherein the localization components comprise at least one machine translation system that provides a certain kind of localized data for selection by the translation matching component, the certain kind being prepared data stores of automatically generated translations of data from a first spoken language into a different second spoken language, and wherein the translation matching component selects localized data from the machine translation system upon a determination that no desired alternative localized data is located in the plurality of data stores.