Marketing on the Internet (online marketing) is qualitatively a new and modern form of marketing, using of the space of Internet and digital technologies in order to achieve specific marketing objectives. Among the priority objectives include the promotion of your company or product, a raising of awareness of the company and especially the gaining of the new customers. To achieve the objectives is using a wide range of online marketing tools and processes. Among the most commonly used tools include SEO (search engine optimalization), PPC (Pay Per Click) and banner campaigns, social networks like Twitter, Facebook, LinkedIn, blogging, newsletters, discount portals and many others. By using of an appropriate combination of marketing tools can be very effective to set the campaign to the target group. Online marketing has many advantages, why invest in that direction, why with us and why rather not?