Rich Rygg has joined GeoCities, Santa Monica, Calif., as vice president and general manager, from general manager of Digital City Los Angeles. Dick Hackenberg has also joined the company, as vice president of marketing. He was an account director for interactive advertising at TBWA Chiat/Day, Venice, Calif. . . . Firefly, Cambridge, Mass., named Ben Bassi as executive vice president of sales and marketing. Bassi was vice president, business development at Lycos. . . . The Electronic Newsstand, Washington, D.C., named Donald Evans, former chief technologist at Swerve, director of technology, and Amy Reiter, former entertainment editor for CompuServe, senior producer.