 Lopez has taught at many colleges and Universities over the years most notably Columbia University (at the Graduate School of Journalism) and several colleges in the City University of New York system (John Jay, Lehman, Hunter College) and has lectured extensively nationwide.In 1994, Lopez launched People Link, a progressive Internet provider which has been in continuous existence since then and merged, in 2006, with members of the former May First Technology Collective to create May First/People Link.That organization, with over 500 members, is the largest Internet membership organization in the United States and generally considered the predominant progressive Internet provider.