Drag and drop in HTML 5 can operate across sites in different domains; so you can drag from one site and drop onto another. Also, the data transfer object that you move in a drag and drop operation can store multiple data values.
Content tagged “drag and drop”
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Native Drag and Drop | HTML5 Doctor
Along with an army of JavaScript APIs, HTML 5 comes with a Drag and Drop (DnD) API that brings native DnD support to the browser making it much easier to code up.