A great feature by Wade Roush on the normally tech-focused Xconomy Boston hub: Silicon Chef - A Half-Baked Guide to Food Startups.  

"When the ex-CEO of Pure Digital...wins funding from Sequoia Capital to open a chain of grilled cheese sandwich shops, it may be time to abandon your own enterprise-cloud-marketing-analytics-automation venture or your social-mobile-deals-gamification startup and think about getting into the food business."

He goes on to feature a number of cool food start-ups, some certainly utilizing the web and technology.  Don't forget Abe's Market and Overshores!