Rad browser bookmarklet by Norbauer Applications:
When highlights are created on any Kindle device, they are synced up to Amazon’s cloud. These are then visible at kindle.amazon.com, but there is no reason to believe that Amazon will continue to provide this service forever, and our ability to work with text in that hosted browser-based environment is limited.
We wanted a way cleanly to download our highlights onto our local computers, so we created a bookmarklet that permits one to excise highlights from the book’s kindle.amazon.com page.
(Hat tip: Jeremey DuVall.)
All Narfed Up 