MARC USA promoted VIVEK SARAN from senior account planner to group account planner and SUZANNE BASISTA from account executive to senior account executive.

Merkle promoted CHRISTIAN WRIGHT to the newly created position of chief technology officer and BARRY SMITH to chief information officer.

BOB AMBERG was promoted to national advertising director of National Geographic magazine.

Media Contacts elevated group director of search, ROB GRIFFIN, to group head of its Search, Data & Analytics offering. SHEETHAL RAO was named senior insights analyst to oversee the analytics team in New York. Lastly, MARK EGAN was named global director of new business.

ML Rogers, New York named CORY SMITH as senior art director, working on Checkers Drive-In Restaurants, Scotts Miracle-Gro, Blistex and other accounts. Previously, Smith was senior art director at Hill Holliday, New York.

Hill Holliday tapped JOHN DUKAKIS as senior vice president and director of branded entertainment. In this capacity, Dukakis will manage client marketing initiatives rooted in the entertainment industry. Most recently, Dukakis served for seven years as an executive vice president at Overbrook.

Travel Ad Network promoted BOB SACCO from vice president of sales to vice president of marketing, a new position.

Tennis Channel promoted DAVID SCOTT to executive director, acquisitions and programming and BOB WHYLEY to coordinating producer.

TERENCE ZAHNER joined Wunderman as senior analyst, working in the Insights and Optimization group on a variety of accounts. PHYLLIS KANE was named vice president, account director on the Citi Cards account.

Media Networks named MICHAEL NASIF as director of business development, digital. Nasif will oversee efforts to grow business for MNI Digital, the online and email marketing division of MNI.