Cooking events like barbecues, tailgate parties and picnics are what summer is all about. They're also settings that showcase the way food brings families and communities together. Food drives during food events like chili cook-offs and grilling competitions can be particularly poignant. The key to making them effective is in getting the word out ahead of time. Contact event sponsors early, and work with them to find ways to promote the event as a great opportunity to eat, have fun and share with the less fortunate.