Код:
javascript:location.href='https://www.google.com/bookmarks/mark?op=add&title='+encodeURIComponent(document.title)+'&bkmk='+encodeURIComponent(location.href)
или еще лучше - в новом окне
Код:
javascript:void(window.open('https://www.google.com/bookmarks/mark?op=add&title='+encodeURIComponent(document.title)+'&bkmk='+encodeURIComponent(location.href)))
