1. Universidade Fumec,Faculdade de Ciências Empresariais,Belo Horizonte,Brazil
2. Social CRM Research Center SCRC,Leipzig,Germany
3. Universidade Federal de Uberlândia,FAGEN/PPGAdm,Uberlândia,Brazil
4. CBS International Business School,Social CRM Research Center, Faculty of Technology and Management SCRC,Leipzig,Germany
5. Leipzig University,Information System Institute,Leipzig,Germany