Mobile is huge and the opportunity for mobile marketers is even bigger. Everyone especially younger generations are constantly checking their phone for notifications and updates from friends like Snapchat, Instagram or text messages. There's even more opportunity for marketers including notifications, app-based marketing, QR codes, SMS, MMS, Bluetooth, in-game mobile advertising, voice email and even through automated calls. Our friends at Websitebuilder.org, created this infographic showing 104 facts you may not know about mobile marketing.