1. A method, in an information handling system comprising a processor and a memory, of utilizing unstructured corpora, the method comprising: receiving, from a first user, a question at a question answering (QA) system; generating a private corpora associated with the first user, wherein the private corpora is generated from a first set of one or more private data stores associated with a first user and a second set of one or more private data stores associated with a set of one or more second users, wherein access to the second set of private data stores is provided to the first user by the set of second users; retrieving responsive data to the question from the private corpora, wherein the responsive data is ranked based on a relevance to the question; identifying one or more likely answers based on the ranked responsive data; and providing the one or more likely answers to the first user.