Tribal DDB was awarded global digital work for Unilever's Flora/Becel margarine brand. Ogilvy & Mather previously handled the work.

Sheraton Hotels & Resorts tapped Razorfish as its lead agency, working alongside sister agency, Kaplan Thaler Group.

The VIA Group has been named agency of record for Prestige Brand Holdings, a worldwide consumer goods company. VIA began working with Prestige late last summer, and in November launched an integrated campaign for PediaCare. In addition to PediaCare, the agency will now handle Prestige brands such as Luden's, Chloraseptic, Little Remedies, Clear Eyes, Efferdent, Compound W and Comet.

Burger King has parted ways with its agency, Crispin Porter & Bogusky, after seven years.

Microsoft split it $1 billion media account between Mediavest, tapped to handle strategy and planning, and incumbent Universal McCann, slated to manage Microsoft's media planning and buying outside of North America.

Genuine Interactive was named digital agency of record for Tribe Mediterranean Foods and its Tribe Hummus and Veggie Patch brands.

Global Pari-Mutuel Services named Mechanica to help build, brand and launch a global gaming platform focused on the movement of financial instruments, such as stocks, bonds and indices.

United Way Toronto has selected BBDO Toronto as its agency of record.

Tourism Australia placed its US, Canada and Latin America (Brazil and Argentina) PR work in review. Tourism Australia has invited its incumbent PR agency to participate in the review. Los Angeles-based Fleishman Hillard has been working on PR with Tourism Australia since 2008. AAR Partners is managing the review process.

Propel Zero placed its advertising account in review. Goodby, Silverstein & Partners previously handled the account.