Thanks. Don't seem to be any free one's though. The irony of paying for an advert blocker is too much lol. No opinions on which is the 'best' yet really and I wouldn't wanna buy more than 1.
I hate the stupid names for them such as "Peace" and "Purify", were they developed by hipsters? Anyway, I purchased Peace and immediately tried websites which cause me the most grief, ones by local world (http://www.localworld.co.uk/ourbrands/). The entire site was blocked.