MARIE STENBERG was named vice president of public relations at LIFESKOOL and SPORTSKOOL. Prior to joining Rainbow Media, Stenberg served as vice president of the corporate technology practice for Cohn & Wolfe.

Loyalty Lab added GEORGE WIEDEMANN, most recently managing director of Harte-Hanks Partners, to its board of directors.

JULIO VARGAS joined Wunderman as a senior flash developer. Vargas was most recently a flash developer at TBWA/Chiat/Day.

McKee Wallwork Cleveland named LINDSEY GLOETZNER as media buyer.

PAUL MARTINEZ was named creative director of Men's Journal. He joins the magazine from Marie Claire, where he served as creative director.

ROBERT REIF was promoted to president of both Media Networks and Targeted Media. Prior to joining MNI, Reif had a 14-year career at The New York Times, where he held various sales and senior sales management positions.

YUMI MORIGUCHI joined dentsuAmerica as an account executive on various accounts, including Canon, Ajinomoto and NEC. Most recently, Moriguchi was a sales and marketing assistant manager at IIJ America.

Ad Infuse named BRENT WALL as sales manager.

Zillow.com named GREG SCHWARTZ as vice president of sales. Schwartz, who previously led ad sales at CNNMoney.com, will be responsible for heading Zillow’s national advertising sales team.

Tribune Publishing named TIMOTHY (TIM) RYAN as president, publisher and chief executive officer of The Baltimore Sun Company, succeeding RONDRA MATTHEWS, who is stepping down for personal reasons.