I really like the software and find it very useful, but I find the navigation to be counter-intuitive, with maybe 2 to 3 layers of menus, menus that change a bit too much from page to page (sometimes disappearing), and buttons all over the place, sometimes not where I would expect them to be. As part of this reorganisation, I suggest that the home icon bring us to a specific user's Diigo homepage (dashboard with links to My Library, My Groups, etc.) rather than exiting to Diigo's main page.