In 2011, Hosni Mubarak abdicated his position of president-for-life after peaceful protests across Egypt. Demonstrators in these protests used social media platforms like Twitter to communicate directly with a global audience, but tweets are ephemeral and there are no standards or best practices for their collection and preservation. Using the revolution in Egypt as a case study, this paper serves as a guide to collection developers who are interested in collecting subject-centered collections of tweets. We will discuss how to collect tweets using Twitter\u27s application programming interface (API) as well as collection development issues related to Twitter\u27s role in the Egyptian revolution. These issues include determining the scope of...