Michael Crotty has joined Sony Online Ventures as director of retail operations from electronic commerce manager at Time Warner's DreamShop. . . .Sara Stein has joined The Electronic Newsstand as vice president, marketing from account manager, Poppe Tyson Interactive, New York. . . Auditor BPA has promoted Ronald Spink to director, interactive marketing services, from manager. . . .E! Online, Los Angeles, named Jill Higson western advertising director and Justin Nesci eastern advertising director. Higson was national ad manager at CitySearch; Nesci was national ad director at 2d Interactive. Correction: IQ News' June 30 issue incorrectly reported Ken Orton's title. He is CEO of Preview Travel.