British Telecommunications Plc has launched its on-line EYP Electronic Yellow Pages service with entries totalling 1.8m UK businesses and services: anyone with an ASCII terminal or personal computer, plus a modem and VT100 or viewdata-compatible communications software can access EYP direct and is guided by a number of menus through to the entry or entries required; Prestel access is also available; no subscription fee is charged, and users pay local call rates for the service; British Telecom says that as the service grows, advertisers will be able to buy additional screens to include such things as product catalogues under their entries.