Since algorithmic recommendation has been widely adopted in information distribution, as a new concept of "network neutrality", "algorithmic neutrality" has come into the public view. Thus, from an initial requirement only to Internet Service Providers providing wire or wireless services, restricting their controlling of the application and content providers, "network neutrality" requirement has extended to contain content providers, service providers and terminal equipment manufacturers, until covers all the upstream and downstream industries’ technologies around fixed or mobile networks. Nowadays, it has further become a requirement of platishers represented by social media to recommend information to users by algorithm.