I have used a free program called Mike’s Ad Blocking Hosts file for several years now. It cuts out a tremendous number of ad-vertising web links.
http://everythingisnt.com/hosts.html
You should try out the Hostman link above in post 7. It auto-updates the Mike’s file, plus has 3 more Ad blocking hosts files it auto-updates, you can add more to it, including your own ad blocking hosts file manual inclusions and it merges all of the various hosts files automatically.