This document discusses Text a Librarian, a web-based text messaging reference service for libraries. It launched in January 2009 and was built based on feedback from libraries. It allows patrons to text reference questions to libraries, extending their outreach. Libraries need to consider security, privacy, costs, implementation, features, reporting, marketing, ease of use, and support when providing text reference. Features of Text a Librarian include patron privacy, notifications, auto-responders, collaborative features, text translation, searchable archiving, reporting, marketing materials, and integration with other reference tools and social media.