The Medfield Employers & Merchants Organization is holding its annual Discover Medfield Day on Saturday starting at 9 a.m. There will be more than 150 booths showcasing local artists, businesses, and organizations, as well as an entertainment stage, food, and rides for kids, with events being held next to Meeting House Pond and along North Street. There will also be a concert at the gazebo next to the Medfield Public Library, with three bands performing, to benefit the Medfield Food Cupboard. For more information, visit www.medfieldmemo.org. Full story for BostonGlobe.com subscribers.