share a screenshot from clipboard directly to imageshack?

Is there a way to share a screenshot thats stored in clipboard directly to imageshack without saving it to a file first?

i always use shift+control+command + 4 to grab a screenshot and store it in the clipboard. i'd like to be able to share that directly to imageshack (or any other quick image sharing host).

For example in the "send to iPhone" dropzone addon, it can read what you currently have in the clipboard (text/image/etc) and then you can just click on the "send to iphone" and it'll automatically send whats in your clipboard to your phone. you don't have to drag text/image/file to it at all.