Chris Carlsson, director of the multimedia history project Shaping San Francisco (now a wiki at foundsf.org), is a writer, publisher, editor, and community organizer. He has written two books (After the Deluge, Nowtopia) edited five books, (Reclaiming San Francisco, The Political Edge, Bad Attitude, Critical Mass: Bicycling’s Defiant Celebration and the forthcoming Ten Years That Shook the City: San Francisco, 1968-78. He redesigned and co-authored an expanded Virtual Waters: A History of San Francisco’s Mission Bay. He is a co-founder of the San Francisco-based CounterPULSE, where he has produced weekly public Talks since January 2006. He also conducts award-winning bicycle history tours. He has given hundreds of public presentations based on Shaping San Francisco, Critical Mass, and Nowtopia since the late 1990s, and has appeared dozens of times in radio, television and on the internet.