(37a) The definition of an online content sharing service provider under this Directive targets only online services which play an important role on the online content market by competing with other online content services, such as online audio and video streaming services, for the same audiences. The services covered by this intervention are those the main or one of the main purposes of which is to provide access to a large amount of copyright-protected content uploaded by their users with the purpose of obtaining profit therefrom, either directly or indirectly, by organising it and promoting it in order to attract more audiences. Organising and promoting content involves for example indexing the content, presenting it in a certain manner and categorising it, as well as using targeted promotion on it. The definition does not include services whose main purpose is not to provide access to copyright protected content with the purpose of obtaining profit from this activity. These include, for instance, electronic communication services within the meaning of Regulation 2015/2120/EU, including internet access providers, as well as providers of cloud services which allow users, to upload content for their own use, such as cyberlockers, or online marketplaces whose main activity is online retail and not giving access to copyright protected content. Nor does this definition cover websites which store and provide access to content for non-for-profit purposes, such as online encyclopaedias, scientific or educational repositories or open source software developing platforms which do not store and give access to content for profit making purposes. In order to ensure the high level of copyright protection and to avoid the possible application of the liability exemption mechanism provided for in this Directive, this Directive should not apply to services the main purpose of which is to engage in or to facilitate copyright piracy.