According to Google research, mobile already has more searches daily and more clicks on ads than desktop. But, it doesn't mean you must run your campaign on mobile. Desktop campaigns still work better than mobile campaigns in many businesses. The conversion rate is higher on the desktop because the sites are well optimized and giving users a better user experience. If you want to run a mobile campaign, you should ask yourself four important questions: 1. Is your site mobile optimized? If your site is not mobile-friendly, you really SHOULD NOT advertise on mobile. It will potentially hurt your brand reliability because the users feel bad about their mobile experience. And, you are also going to be penalized by Google and have a very high cost for click. Before you advertise on mobile, test your website on the site evaluation tool such as MobileTestMe . Paste your website URL and to see whether it displays well on different devices. 2. Where are your customers when they s...