Move items on the Safari reading list
There seems to be no direct way, but I could export them using Google Chrome:


From the Customize and Control Google Chrome menu, choose Bookmarks &gt; Import Bookmarks and Settings.
In that window, select Safari and make sure that the Favorites/Bookmarks option is checked, then click Import.
Now, in Chrome Bookmarks menu, you should find a new folder called Imported from Safari with a subfolder called com.apple.ReadingList that include your Reading List items.
If you want, you can export them using Chrome's Bookmark Manager as usual.