This link popped up on my Facebook feed today, and at a quick glance, it appears to be a rich resource of information for a plant-based diet. The University of California-Davis has published a free guide.
http://www.ucdintegrativemedicine.com/2015/03/the-ultimate-resource-guide-for-plant-based-living-2/
So eat your greens and colorful veggies! These were so pretty I had to take a picture.