Couple of suggestions Rated 3 out of 5 stars
It would be nice to have a Book Text Mark button with a drop down of Book Text Marked pages that can be dragged to the menu. It will be much easier to access webpages than the current right click > BTM > BTMs > URL process, which takes up a lot of time and activity.
Perhaps the listed of Text Book Marks could be identified by the page's name instead of the URL. I use it mainly for marking forum threads, and if the URLs are long and I don't have specific numbers memorized, I have no clue which link is from which thread.