Best of 2010: Clever Guerrilla Marketing Tactics

In January, consumer reporting agency TransUnion staged large-scale public yoga classes in New York and Chicago.

To tout the show Covert Affairs in July, USA Network dispatched 40 models masquerading as the show's lead character, C.I.A. agent Annie Walker. The troop paraded past high-traffic public areas to silently spread the message.

For the 2010 Upfronts in New York in May, NBC promoted its slogan "More Colorful" with a group of brightly hued cabs that drove around Midtown before stopping in front of the Hilton for the network's presentation.

Cheddar cheese maker Tillamook converted a VW vehicle into the Tillamook Loaf Love bus, which handed out samples throughout the western United States this spring.