Food Alert

Launched in San Francisco in early August 2009, Curtis Kimball's mobile Crème Brûlée Carthas attracted more than 8,000 Twitter followers, who rely on his tweets to find out exactly where he'll be, and what flavors are on the menu.

The Warm Cookie Radar from Specialty's Cafe & Bakery sends customers email alerts when batches of just-baked cookies have rolled out of the oven.

Kogi Korean BBQ sells its Korean/Mexican fusion food primarily through two trucks that are always on the move to new locations in the Los Angeles area. To know where to find them, customers must follow Kogi on Twitter.

Is alerting the new searching?