RANDI BARSHACK has been named as vice president of worldwide marketing at Mercado Software. In addition, DAVID LEIBOW has been named as vice president of worldwide professional services.

PM DIGITAL has hired ANNE CHEN as associate director. Chen will provide strategic direction for search engine optimization, paid search, email and media planning to several clients. Chen joins PM Digital from Did-it Search Marketing.

MAYLINN DE LA MAZA has rejoined Zubi Advertising as account director overseeing the Ford and Lincoln Mercury accounts. She previously worked at Zubi for 10 years before a six-month stint at Nissan.

VentureDirect Worldwide has appointed ROBERT CORDES KLINE as creative director. He was previously creative director at Conde Nast for the Fairchild Publications Division.

TM Advertising has promoted TODD CONNELLEY to interactive creative director.

DAVID SLADACK and HOLLY MAUST have joined Blattner Brunner as vice president of account management and regional marketing manager, respectively.

ANDY JEDYNAK, formerly senior vice president of the consumer division will become chief marketing officer of WeatherBug. MICHAEL ROSEN has been appointed to senior vice president and general manager of WeatherBug consumer and SHANE LUNDY will move to vice president of product strategy for AWS, from vice president of business development of WeatherBug consumer.

90octane promoted PAUL VANGURA, previously marketing coordinator, to senior innovations coordinator. In addition, BROOKE CAESAR was elevated to senior marketing coordinator.

JIM COLLINS has joined Mediamark Research Inc. as senior vice president of research. Collins most recently was senior vice president of information systems at Scarborough Research, which he joined in 1998.

STEPHEN FRIEDMAN was promoted from general manager of mtvU to executive vice president. Friedman will continue to oversee all aspects of MTV’s college network, in addition to the recently acquired College Publisher network of more than 500 online college newspapers.