I like to idea of being able to comment on my ebooks and see comments from my friends. I hope they make an Android app soon.
Create a Virtual Book Club
Once you sign up for BookShout you can browse through their selection of Christian books. Buy books with your friends and create circles of people you would like to share notes with.
You can use BookShout for your local Bible study or small group. Or you can create a virtual book club with people all over the world.
Share your notes via Facebook or Twitter or share them with your circles. The multicolored highlights makes it easy to see and reply to other people’s notes. If you want to take notes for yourself you can even take private notes.