What is the difference between PPC marketing and internet marketing?

Hi Friend,
Digital Marketing = Any advertisements with help of Digital device like smatphone or computer. Example are PPC, SEO, SMO, EMAIL, CONTENT MARKETING etc.

PPC= It stand for pay per click advertisement which is part of Digital Marketing. Example of ppc advertisement are GOOGLE ADS, FACEBOOK ADS, BING ADS etc. Here you have to pay for each click or impression. You can learn more about ppc here Home - Google AdWords & PPC Services

The main difference between Search Engine Optimization (SEO) and Pay Per Click (PPC) is that traffic coming from SEO (organic) is free while traffic generated from PPC is not free (as the name implies you have to pay a cost per click).

As ppc itself explain that it drives paid traffic, but internet marketing is explained as organic traffic source.