This is a nice feature. Just another thing that makes me want a Kindle.
Amazon via email said:Dear Amazon.com Customer,
Our customers have told us that they love being able to add highlights and notes to their Kindle books. We want to make it possible for you to access your highlights and notes directly from a Web browser too. So we've released http://kindle.amazon.com, an online tool that enables you to do just that.
To try it out, go to http://kindle.amazon.com, sign in with your Amazon account, and simply select one of your books where you have added highlights or notes.
We hope you enjoy this new feature. If you have feedback please send it to us at amazonkindle-feedback@amazon.com.
The Amazon Kindle Team