Forks Over Knives: the movie and movement to promote plant based eating. If you haven’t seen the movie, get to it! It’s on Netflix or available through the website. This is a great place to start if you’re looking for motivation and resources: http://www.forksoverknives.com
John Walker’s Fourmilab site, host of “The Hacker’s Diet“: https://www.fourmilab.ch/hackdiet/
Isa Chandra Moskovitz’s Post Punk Kitchen, purveyor of delicious plant based (vegan) foods: http://www.theppk.com
Claryn’s very excellent recipe blog “hell yeah it’s vegan“, some of the best recipes around: http://hellyeahitsvegan.com
Rip Esselstyn’s Engine 2 Diet site. Gone a bit commercial for my taste, but Rip and his famous father Caldwell have been promoting plant based diets long before it was popular to do so. Check it out here: http://engine2diet.com
Mark Bittman’s The Purple Carrot site, vegan food made easy. Mark also has a lot of great information on the rationale for plant based eating, both for yourself and for your world: https://www.thepurplecarrot.com