MorganS:
Yes, but why? What is it on the web pages that you are reading? How often? How much data?"Source code" might be interpreted to mean the PHP or Ruby code. You won't get that from a webserver.
You didn't read my link, did you?
I want to be able to add data from my pc to my website and then let my arduino to read that data from my website by getting the source page.
That data could be like a database with hours letting the arduino know when to run something and when not to.