OpenX named former AOL Chairman & CEO JONATHAN MILLER to its chairman of the board.

Riot/New York named BRENT HOLT as executive producer.

Rodale hired JOHN MCCARTHY as vice president, Rodale Direct, for Women's Health, Best Life, Runner's World, Running Times, Bicycling, and Mountain Bike. Most recently, he was senior vice president of consumer marketing at Source Interlink Media.

LIME public relations + promotion elevated GABE BANNER from account director to promotions director; and hired SARAH DELUCA and AMANDA RUYMEN as account managers.

JOHN MAXHAM joined DDB Chicago as group creative director. Most recently, he was chief creative officer at Maiden Lane in San Francisco.

Ames Scullin O'Haire named MICHELLE EVANS as media director. Most recently, Evans was vice president, planning director at Initiative Media Worldwide in Atlanta.

Toth Brand Imaging promoted PERDY TICKNOR to group account director, up from account supervisor.

PointRoll named JASON TAFLER as CEO and DEANN HARVEY as svp of global sales.

GSD&M Idea City named DAVID HENNAGIN as senior vice president, direct services, to lead the agency's direct response marketing group. He joins the agency from Bernstein-Rein Advertising in Kansas City.

JOHN MONTGOMERY was promoted to chief operating officer of GroupM Interaction North America, a new position. Since 2005, Montgomery has served as worldwide CEO of GroupM's MindShare Interaction.