See: http://blog.jonudell.net/2008/10/22/why-and-how-to-blurb-your-social-bookmarks/

Draggable:

post to del.icio.us

Copyable:

javascript:(function(){var%20notes=window.getSelection ? window.getSelection().toString() : (document.selection?document.selection.createRange().text : ""); notes=encodeURIComponent(notes); f='http://delicious.com/save?url=' +encodeURIComponent(window.location.href) +'&title='+encodeURIComponent(document.title) +'¬es=%22'+notes+'%22&v=5&'; a=function() {if(!window.open(f+'noui=1&jump=doclose', 'deliciousuiv5','location=yes,links=no,scrollbars=no, toolbar=no,width=550,height=550')) location.href=f+'jump=yes'}; if(/Firefox/.test(navigator.userAgent)) {setTimeout(a,0)}else{a()}})()