You should use an ad blocker because it gives you control over your browsing experience. You need that control because advertisers have made the web an unpleasant place. The thing is, we all need adverts. Think of all the products you've bought, that you wouldn't have known about without advertising. The issue isn't 'To block or not to block'. Everyone should block ads until advertisers learn to behave. As advertisers are unlikely to learn to behave voluntarily, it's up to ad-blockers, bloggers and news sites to start pushing advertisers in the right direction. Annoying ads, slow downloads and tracking all need to go. Bloggers should avoid the main offenders and work with advertisers that offer true unobtrusive ads, minimum downloads and that don't track. We need adverts, but more importantly, we need advertisers to play nice.