Global digital creative director, Wieden & Kennedy
Age: 38
Rank change: New
Industry: Advertising
Tait joined the Portland, Ore., ad agency in April to revive its lagging digital business -- and made his mark by turning P&G's "Old Spice Guy" campaign into a viral sensation.
NEXT: 40. Aryeh Bourkoff - Tie
Last updated October 14 2010: 1:25 PM ET