[The] pastebin is here to help you collaborate on debugging code snippets. If you're not familiar with the idea, most people use it like this:

* submit a code fragment to pastebin, getting a url like http://p.linode.com/1234
* paste the url into an IRC or IM conversation
* someone responds by reading and perhaps submitting a modification of your code
* you then view the modification, maybe using the built in diff tool to help locate the changes