[Veera]

//A "source" text box to input the URL of the source//

If the source already has a URL, then why is it needed to create a another (short) URL for that source again! a URL shortener (bit.ly, goo.gl) could be used in that scenario. :)

[GrayRoark]

You could just send part of the text or you could just want a text with a cleaner look.