I am trying to produce a Joomla social bookmark submitting site being an experiment and I am wondering the way i might program a draggable bookmarklet that customers can also add for their bookmarks bar, much like scrumptious. any ideas?

Basically, a bookmarklet is simply a slice of javascript. After you have that in position, anything that you can do with javascript, that you can do inside your bookmarklet. Including such things as grab the present URL in the browser and send it (via ajax) to elsewhere.

That's virtually the model you're searching at, without or with some additional javascript-driven UI for individuals to have interaction with once they produce the bookmark,