Blocking Facebook, Youtube, Amazon,...

Hi all,

I using Fortigate 300D (v5.6.3). I have PCs and Laptop, I need block "Facebook Youtube Amazon Skype" and just open some ip as required. I block by Application Control.

I created rules on the Firewall:

Rule 1: Open Facebook

Rule 2: Open Youtube

Rule 3: Open Amazon

Rule 4: Open Skype

Rule 5: Block Facebook Youtube Amazon Skype

Rule 6: Access Internet

Default all uses will access rule 5. When user request open Facebook and Youtube, I add ip address to rule 1 and rule 2 but it's not work rule 2.

Do you have a best solution? Please help to guide how to do it because I really new.