When I click the Bookmarks icon in the tool bar, both Bookmarks and Reading List open. Prior to Mavericks, one need only click the icon again and the column would close; now it requires Clicking on the word Bookmarks at the top of the screen, then clicking on Hide Bookmarks. To add a page to Reading List, one must drag the address to the RL column whereas in ML a click would do the trick. Not weighty issues, nothing that will send a tremor through the Board Room in Cupertino, but irritants none the less. Have you found any....?