These are from a paid-for service called Google AdWords. Business owners pay to display their Ad using a PPC (Pay Per Click) system. The company will 'bid' an agreed amount and will pay this every time their listing is clicked. Companies set a daily, weekly or monthly budget and as soon as the budget is reached the ad will disappear. This system accounts for 80-90% of Google's revenue. In contrast, Bottle Green specialise in 'organic' search engine rankings, meaning that your site will still rank well long after you stop paying for SEO.