Mirror Image Internet named Charles White as chief revenue officer.

Firehouse appointed Sarah Avery as public relations director. Most recently, she was director of corporate communications for Caelus Energy.

Take2Media hired Jay Farrell as president.

Angela Herbst rejoins PJA Advertising + Marketing as group account director. Herbst rejoins PJA from Boston-based Hill Holliday where she was a management supervisor working on the Bank of America account.

BlueKai hired Cory Treffiletti, as senior vice president of marketing. Most recently, Treffiletti was president of Catalyst S+F.

Tim Wettstein was promoted to group creative director of JWT Atlanta. Wettstein joined the agency earlier this year as a creative director.

Jason Ambrose is returning to CP+B as creative director. Ambrose will be based in the agency’s Los Angeles office.

Digital Operative hired Matt Browne as vice president of marketing.

The Weather Channel Companies hired Bryson Koehler as chief information officer.

Canaan Partners promoted Dan Ciporin to general partner.