Agreed that this is awesome! Would love to also see Genius-style annotations, where the comments are on lines instead of the margins. I think this makes it slightly easier to read the text without scanning back and forth between the text and margins to check if what you're reading has been annotated
Wow, this project (Fermat's Library) looks so awesome. It's similar to an idea I've had for a while, but my pedagogic skills are feeble. I started translating some collected works of the famous, old French mathematicians, but ended up with just a few fragments due to other interests and my weak French skills.
Getting weird bug in Safari (Version 8.0.7 (10600.7.12)) where if I click an annotation then close it, I don't see the rest of the annotated bubbles on the left.