Martha Stewart Living Omnimedia named Janet Balis as executive vice president of media sales and marketing.

Tremor Media hired Montana Triplett as director of marketing. Most recently, Triplett was media and interactive manager at Coca-Cola.

Expert Communications hired Robin Raff as director of strategy for ECI Healthcare.

La comunidad hired Tracy McDonough as director of interactive planning. McDonough previously was vice president of emerging businesses for NBCU's Telemundo Network.

Pandora Media hired Sean Duggan as eastern regional vice president of sales. Duggan joins the company from MySpace at Fox Interactive Media where he was director of east coast sales.

Horizon Media tapped Amy Schuman as an associate brand group director.

OgilvyAction named Tanya Collins as director of insight and planning of its Chicago operation. Previously, Collins was a partner and planning officer for Damay Marketing.

Victoria Gold joined TheWrap.com as vice president of advertising sales.

BALDWIN& hired Oscar Zabala as alchemist. Previously, Zabala was a freelance designer/photographer, working for southeastern indie rock bands.

Randy Washburn joined Butler Till as director business development. Washburn was previously senior vice president of business development, southeast at Carat.