LESLEY BIELBY has been promoted to executive vice president of strategy and planning at Hill Holliday’s Boston office. Bielby will oversee strategy and planning for the entire Hill Holliday network. Prior to her role in Boston, Bielby served as director of planning at Hill Holliday’s New York office.

Knowledge Networks has named SIMON KOOYMAN as its chief executive officer. He is succeeding JOHN LEWIS, who left Knowledge Networks in December 2005 to become president and CEO of AC Nielsen USA.

JOHN ENGLER has been named vice president of Unsubcentral.

JUDY JENACARO has been named account director for the east coast offices of MKTG.partners. Jenacaro will be responsible for the management, strategic development and execution of programs for clients including Playtex Living Gloves, Wet Ones, Remy Cointreau USA and Kao Brands/Curél.

IAN BARDORF has joined Catalyst on-line, a Boston based Search Engine Marketing firm, as director of sales and account management. Most recently, Bardorf was the senior Internet marketing consultant for the Thomson Corporation managing regional business in sales and account management.

Pointroll has named CRAIG CARNEY as western sales director; GUILLERMO SUAREZ as eastern sales director; ROSS SANDLER as eastern sales director; SARAH RIPMASTER as Midwest sales director; RYAN DAUME as sales planner; ROBERT HOLIBER as eastern account executive; and LEE FREUND as eastern sales director.

ALEX CHISHOLM has joined Interpublic Media as vice president, director, content experience analytics, and MAHESH KRISHNA was named vice president, director, brand experience analytics. Chisholm will develop new instruments to observe and measure consumer use of content, and manage the PropheSEE Content business, a data mining capability that measures consumer sentiment toward content. Most recently, Chisholm served as the director of external relations for the MIT Comparative Media Studies program. Krishna will monitor trends in consumer drivers of interest in advertising categories for clients, internal personnel, and business development prospect teams. Most recently, Krishna was a brand planner and …

MSNBC.com has named RUSSELL SHAW as deputy editor, news. Shaw joins MSNBC.com from the Houston Chronicle, most recently serving as assistant managing editor, news.

MARY CLARKE has joined Hallmark Channels as the new director, eastern region, network distribution & service. In this role, Clarke will implement sales strategies to help increase distribution and subscriber revenue for both Hallmark Channel and Hallmark Movie Channel.

Saatchi & Saatchi has appointed TOM ESLINGER to the newly created position of interactive creative director, worldwide. Eslinger has been a creative director at Saatchi & Saatchi since 1998.