McQUERTER SELECTED TO JOIN ELITE "GLOBALFLUENCY" NETWORK   PROMINENT INVESTOR RELATIONS SPECIALIST JOINS MCQUERTER   MCQUERTER LANDS MEDICAL DEVICE MANUFACTURER FOR IR/PR SERVICES   MCQUERTER and Neil Mackintosh Join Forces   MCQUERTER Names Vice President of Public Relations Seasoned Leader to Drive Public Relations Practice and Expand New Business Efforts at Marketing Communications Firm.   Mexican Technology Executive Named to Head Agency's Latin American Operations Former CANIETI Director, Xochitl Amelia Valencia, to manage office in Mexico City.   MCQUERTER PR Retained by Echelon For GLOBAL Communications Program Worldwide leader in controlled networks cited agency's international presence, tech expertise and integrated approach as deciding factors.   Pico, Starfish Choose McQUERTER as New Agency of Record While Many Cut Back on Tech PR and Marketing Bluetooth and Wireless Internet Solutions Companies enlist new Bay Area Player to pitch corporate messages.