Infoseek, Sunnyvale, Calif., has tapped Barak Berkowitz, former vice president, general manager of American region at Logitech, N.Y., as vp, marketing. . . . Thomas Phillips has been named vp, sales at Wayfarer Communications, Mountain View, Calif., from a similar post at Sterling Software, Dallas. . . . John Colston joins Digital City, Vienna, Va., as vp, programming, from director of programming, AOL Networks. . . . Razorfish, N.Y., has added Evan Orensten and Jean-Philippe Maheu as managing director and vp, business development and strategy, respectively. Orensten was vp, senior strategist at Siegel & Gale Interactive Media Group, N.Y. Maheu was a management consultant at Gunn Partners, San Francisco.