Looking for vegetarian-friendly restaurants in your area? Check out VegDining.com and HappyCow.com for local directories. Both sites include international directories, but I've linked to the guides for the U.S.
Real Simple magazine recently spotlighted 25 vegetarian main-course recipes on its site, organized by "pasta and noodles," "pizzas, sandwiches, and tarts," "soup and chili," and "more." I've tried some of these recipes already, but I've bookmarked others to try!
Epicurious.com includes a seasonal ingredient map of the U.S. that can be used to decipher what's in peak season in your area each month of the year. Clicking on your state brings up a list of produce ready for harvest, and each ingredient leads to a description and a list of cooking tips and featured recipes. The cooking tips are especially useful. Great resource!