How to scan news websites for specific data with Arduino

As a pet project, I would like to use an arduino using a wifi module to scan website(s) for specific information (about the war in Iraq). How would I go about setting this up?

Can I use any websites to pull the data, and how would I go about assigning it?

What libraries would I be working with?

Just need some general guidance to get started, Thanks!

agrady1995: ...scan website(s)...

As in a spider?

As in a Google (search engine) query driver?

This sounds like a job for a PC. Why do you want to slow it down with Arduino?