Digital marketing is through digital channels, which could be online or offline. Online marketing is real time live Internet marketing. Digital marketing could be online, and goes beyond that, say through mobile phones using apps, tablets and  other means of communication such as Podcasts and SMS. It is a broader term. Digital marketing does not use print media. It uses social media, mobile marketing, SEO, QR codes etc. Online marketing is restricted to Internet. Digital marketing includes Internet Marketing,  Digital Advertising, and TV, Radio, SMS and Billboards. It has digital foundation.

Internet marketing includes websites, search engine marketing, social media marketing, content, marketing, email marketing, mobile marketing and banner advertising.

Digital marketing is to be used in conjunction with the traditional marketing.

Digital marketing is more cost effective. Online marketing is measurable. Digital marketing is useful for brand development. Digital lets us reach the qualified customers. It sets the stage for customer engagement.

Digital advertising is also a channel of digital marketing.