Read later:
javascript:q=location.href;p=document.title;void(t=open('https://pinboard.in/add?later=yes&noui=yes&jump=close&url='+encodeURIComponent(q)+'&title='+encodeURIComponent(p),'Pinboard','toolbar=no,width=100,height=100'));t.blur();

Save link:
javascript:q=location.href;if(document.getSelection)%7Bd=document.getSelection();%7Delse%7Bd='';%7D;p=document.title;void(open('https://m.pinboard.in/add?showtags=yes&url='+encodeURIComponent(q)+'&description='+encodeURIComponent(d)+'&title='+encodeURIComponent(p),'Pinboard','toolbar=no,width=700,height=600'));