By increasing the number of Internet users and the emergence of social networks, marketers are increasingly using advertising on the Internet. Advertising on the Internet offers opportunities that have not been possible before, such as display ads to specific profiles of people, or those interested in our ads, and the extraordinary possibilities of measuring the impact of advertising. Advertising on Internet is used by and small and large companies to increase sales or number of customers. Advertising on the Internet can be on the search engines, videos, websites and social networks. When you advertise on search engines means that your ads are shown between the results of the search terms in Web search engines such as Google. AdWords is Google's advertising service and there are two networks, search and display advertising network. When we advertise on videos, that usually includes advertising on YouTube. YouTube has made TrueView advertising method in which advertiser pays only if a user clicks on a video ad or view it until the end. When you advertise on other websites we are mostly talking about re-marketing, and such advertising is using AdWords Display Network. When you advertise on social networks it means that we advertise our posts, pages and profiles on social networks. Our ads are going to appear between users news feed. Trend in internet advertising is changing from day to day when it comes to SEO optimization and content marketing. The current trend is advertising on social networks and making video ads. In the future, the use of Internet advertising will increase and there are going to be developed new advertising technologies that will deliver even better results.