"embed url link on your site"

how can i create such a thing like on youtube, where they can past link

[zeus]

often you see on new sites that there is a little box, where the HTML URL link is and it says embed this url link to your site, how do I create such a thing or where is information about that.

[wideaware]

[jimwestergren.com...]

This is a wordpress plugin, but something similar should be available for other stuff, or you can write it yourself.

Something like this could do the trick:

Link to this article!
Use this code to link to this article (Ctrl+C to copy)
It will look like this: [url=http://www.example.com]Article[/url]

<textarea onmouseover='this.focus()' onfocus='this.select()'>&lt;a href=&quot;http://www.example.com&quot;&gt;Article&lt;/a&gt;
</textarea>