I need to block more than 30 URL!

Hi,
Good Day!!!

My name is Clayton,
I speak of Brazil, i need help in this question.
I work in one company with more 40 users need block many sites with Astaro Security Gateway V8 ..

Someone could tell me a step-by-step tutorial?

Today I am trying this way, but I believe it is not the best way forward.

Web Security> Application Control> Application control rules

I create a rule and with the blockade, but has many flaws.

Ex:

I need to block: Social Networking, Libraries, Virtual Shopping, etc. ..
I need a rule that allows me to add the sites it will be the most accessed munitorando to be blocking.


My contact virtual is cgimenez.ti@gmail.com

Tks!
Clayton Gimenez!