That's a really great idea!
I loved and used twitter for a while but fell off the wagon some time ago. I think it's because there was too much repetitive info. Some users like to say the same thing on facebook and twitter, which irritated the heck of me
haha! And there was a lot of spammer. But if I were still using twitter, I think your idea is excellent!
I haven't used kindle for a while either. With the new addition of the family I simply don't have time to sit down and read anymore. Therefore I only listen to audible books right now. Audible makes it impossible to re-listen
selective paragraphs or to bookmark. I vow to go back to paper or ebook when my son is older, because I want to bookmark passages like you said. I remember one feature on kindle that's fun - see what other people highlighted in the book. It's
always interesting to know what others like about a particular book.
Can you share highlights on tumblr or other blogging services? I'd love to be able to see my highlights not via links, but the whole text that I highlighted.