Global Report Initiative (GRI) has recently released a network-based sustainability report compiling instrument--- G4 Online to instruct users the appliance of G4 GRI Guidelines for CSR Report. The online instrument offers great help to users with basic knowledge of “reporting standards” and “Standard Information Disclosure in G4 Guidelines”. It facilitates users’ quick understanding on important terms and concepts, as well as cited information in G4, such as providing links of third-party website to other CSR reporting frameworks (must be cited in G4).    In  this way, G4 Online enables users to directly connect report, website, blog, forum and social network platform to related G4 contents.