In addition, Kim Cleland was named associate editor of the section.
"Debra's spirited leadership of Ad Age's interactive and new-media endeavors will set new high standards of excellence for coverage of these fields," Mr. Yahn said. "Kim's insightful reporting and editing will greatly enhance these important efforts."
Ms. Williamson, 27, previously was the section's managing editor. She succeeds Scott Donaton, now executive editor of TV Guide Online, New York.
She graduated magna cum laude from Northwestern University in 1990 with degrees in English literature and oboe performance and joined Ad Age in May 1990 as a copy editor and production assistant. Ms. Williamson was named associate editor of the IM&M section when it was founded in October 1993 and became IM&M managing editor in January.
Ms. Williamson will also play a significant role in the development and management of Ad Age's new-media line extensions, including the magazine's World Wide Web site (http://www.ad) and online editions on Prodigy and Apple Computer's eWorld.
Ms. Cleland, 27, previously was a reporter for Ad Age and Advertising Age's Business Marketing. She graduated in 1990 from Boston College, where she majored in Spanish and political science. After graduation, she joined the Jesuit Volunteer Corps in Portland, Ore., and taught English to the children of migrant Mexican farmworkers. She received her master's degree in journalism in 1994 from the University of Missouri School of Journalism, and spent her final semester at Ad Age assisting with the Daily Fax and Prodigy editions while writing news stories.
Ms. Cleland also will be the primary beat reporter covering telecommunications, interactive TV, home shopping and infomercials.M