Media concentration / Conglomerates– A media conglomerate, media group, or media institution is a company that owns numerous companies involved in mass media enterprises, such as television, radio, publishing, motion pictures, theme parks, or the Internet. 

Globalisation (in terms of media ownership)– is the worldwide integration of media through the cross-cultural exchange of ideas 

Vertical Integration- The combination in one firm of two or more stages of production normally operated by separate firms. 

Horizontal Integration- is the process of a company increasing production of goods or services at the same part of the supply chain 

Gatekeepers- Gatekeeping is the process through which information is filtered for dissemination, whether for publication, broadcasting, the Internet, or some other mode of communication. 

Regulation- Rules in media. The principal targets of media regulation are the press, radio and television, but may also include film 

Deregulation- Media deregulation refers to the process of removing or loosening government restrictions on the ownership of media outlets. 

Free market- The free market is an economic system based on supply and demand with little or no government control. 

Monopolies- A monopoly refers to when a company and its product offerings dominate a sector or industry. 

Mergers- a combination of two things, especially companies, into one.