Facebook is blossoming with new pages that can help you learn about caterpillars and most importantly, help connect you to other people who are passionate about these creatures. There are also many pages devoted to specific localities: check if your country, state, or even town have groups devoted to insects on Facebook!
Here are a few pages that we regularly explore:
Mothing and Moth-watching: https://www.facebook.com/groups/137219092972521/
A great place to catch the backyard moth-lighting bug! You will find dozens of posts a day from all over the world by people who are addicted to moths and caterpillars. Learn from experts and see whats out there to be discovered.
Caterpillars of the World: https://www.facebook.com/CaterpillarsOfTheWorld
A post from this page is always welcome in my newsfeed. Every few days a new fantastic caterpillar from somewhere on planet earth is featured.
Lepidoptera Rearing 101 - Ohio: https://www.facebook.com/groups/493271447429855/
One of a handful of caterpillar rearing groups on Facebook. A great place to learn new rearing techniques, share your stories, and ask for help! See if there are communities like this in your region.