Spark Notes is an incredible resource for students and teachers alike. It is not meant to substitute reading a text, but rather act as a guide for it. And that is why I'm recommending it for a critical thinking tool as a future English teacher!
https://www.instagram.com/?hl=en Instagram is much more than just posting pictures and getting 'likes.' Instagram is a place to upload videos, pictures, and following people who are posting similar things as you - people you can learn from. Instagram now has a feature where you can 'bookmark' certain posts that you like, so you can refer to them later. They also have the option to connect a link to a post, so when the person swipes, they are automatically sent to the link.