This presentation will give the audience opportunities to see the innovative applications of three domains of authenticity, linguistic, cultural, and functional (Buendgens-Kosten, 2013) in ESOL. In addition, it will present the ideas of various activities applying the three domains of authenticity in various interesting contexts such as online materials, signs, and humor. The audience will be able to widen their view to incorporating authenticity in ESL/EFL classes, especially in connection with technology.