Eli Pariser (born December 17, 1980) is an author, activist, and entrepreneur. He has stated that his focus is "how to make technology and media serve democracy". He became executive director of MoveOn.org in 2004, where he helped pioneer the practice of online citizen engagement. He is the co-founder of Upworthy, a website for meaningful viral content, and Avaaz, a global citizen's organization. His bestselling book, The Filter Bubble: What the Internet Is Hiding from You, introduced the term “filter bubble” to the lexicon. He is currently an Omidyar Fellow at the New America and co-directs the Civic Signals project at the National Conference on Citizenship.