Merkle has hired Mike Ricci as VP of the company's new mobile marketing division. He was previously VP of creative and strategy at mobile marketing agency iLoop.

Lindsay Weedon has been named CEO of Maxus UK, a new position. She joins the WPP media agency from PHD, where she was managing partner and executive board member.

Former eBay and Best Buy CMO Mike Linton has joined marketing analytics firm MarketShare Partners' board of advisors.

Dona Wong has been tapped as strategy director of information design for Siegel+Gale's Simplification practice. She joins the communications firm from The Wall Street Journal, where she was graphics director.