Something Fantastic this Way Comes
I love seeing what other teachers are doing around the world, but to really take advantage of what Folger has to offer, you will need to attend one of their professional developments or buy one of their books. The site is a little busy, but once you figure out how to navigate it, you can get some good ideas. Overall, I think it is a great additional resource, but if you want help teaching an entire play, you will want to buy the book.
How I Use It
Anytime I am teaching Shakespeare I check out the Folger Library. The site has so many fantastic ideas that help students not only understand Shakespeare, but to bring it to life. I find my ideas in the Teaching Shakespeare blog. Here you will be able to read about what other teachers are doing to teach Shakespeare in their classrooms. I usually browse through this section several times during our Shakespeare unit, and I will often incorporate ideas I have picked up here.