Google +1 Bookmarklet (Top Left)

gistfile1.js

javascript:(function(){div=document.createElement('div');e=document.createElement('g:plusone');div.style.position='fixed';div.style.top='8px';div.style.left='8px';div.style.zIndex=9999;div.appendChild(e);document.body.appendChild(div);e=window.document.createElement('script');e.setAttribute('src','https://apis.google.com/js/plusone.js');document.body.appendChild(e);})();