A reading by novelist, filmmaker, and journalist Rory O'Connor, winner of two Emmys and a George Orwell Award, from Friends, Followers and the Future: How Social Media are Changing Politics, Threatening Big Brands, and Killing Traditional Media, City Lights Bookstore, 261 Columbus Ave. at Broadway, San Francisco, 7:00 (415/362-4921, www.citylights.com)