1. A system for pre-fetching content on a mobile computing device associated with a user, said system comprising: a memory area for storing user data; and a processor programmed to: monitor interaction between the user and the mobile computing device; store the monitored interaction in the memory area as a portion of the user data; receive a list of content items each having a content provider associated therewith; calculate a social distance value for each content provider based at least on the user data stored in the memory area, said social distance value representing a relationship between the content provider and the user; and selectively retrieve one or more of the content items on the list based on the calculated social distance value, wherein the processor is programmed to retrieve said one or more of the content items prior to receiving a request from the user for said one or more of the content items.