Mammoth Mountain Resort named David&Goliath its agency of record, following a two-month review.

Following a national review, Push was named creative agency of record for The Melting Pot, fondue restaurants located throughout the U.S.

Carmichael Lynch has added Sierra Nevada to its roster. This is Sierra Nevada's first alliance with a major advertising agency.

Nike Canada named Organic its digital agency of record to lead all interactive work.

Mitsubishi Motors North America tapped Traffic to handle creative chores on its $185 million account. BBDO West previously handled the account and did not defend.

Grey New York was named agency of record for LongHorn Steakhouse.

TransUnion's TrueCredit.com named Cramer-Krasselt its creative and media agency of record. C-K's public relations arm, CKPR, will handle national public relations duties. The agency will handle all marketing communications strategy and execution for TrueCredit.com, spanning traditional advertising, interactive, direct response, public relations, and media buying and planning out of its Chicago headquarters. The account is estimated at $7 million.

BuderEngel has been awarded the Dash Navigation account, following a review. Campaign elements will include broadcast TV, online banners and other non-traditional marketing.

Critical Mass has been named interactive agency of record for AutoTrader.com.

Michelin is expected to award creative duties on its $45 million advertising account to TBWA/Chiat/Day. Campbell-Ewald previously handled the work.