Marketing definition

The internet marketing definition can be summed up simply to sell products and services online by advertising on the Internet.
Today millions of people buy online.
the internet marketing began in the 1990s or it was only promote products in a text.
It has evolved very rapidly with advances in technology to make visual advertisements for products and services.
There are several types of internet marketing.
There are article marketing, marketing blog,
the emailing, marketing by search engine ads by banners, ads, pay-per-click like google adwords and ads by 'pop-ups, targeted marketing,pay-per-view, and video.