Diaz-Ortiz, Claire, 1982- Twitter for good : change the world one tweet at a time / Claire Díaz-Ortiz ; foreword by Biz Stone. - San Francisco, CA : Jossey-Bass, c2011. - xviii, 206 p. : ill., maps ; 22 cm. Includes bibliographical references and index. ISBN: 9781118061930 (hbk.) Subjects--Uniform Titles: Twitter. Subjects--Topical Terms: Social networks.Social change. Dewey Class. No.: 006.7 / DIA 2011