1. Arbeitsgemeinschaft Online Forschung (AGOF) (2010): internet facts 2010-II.
www.agof.de/index.download.d7e641a549b26fa05a030fbcca452e80.zip
.
2. Band, W./Petouhoff, N.L. (2010): Topic Overview: Social CRM Goes Mainstream.
www.forrester.com/rb/Research/topic_overview_social_crm_goes_mainstream/q/id/55884/t/2
.
3. Becker, J.U./Greve, G./Albers, S. (2009): The Impact of Technological and Organizational Implementation of CRM on Customer Acquisition, Maintenance, and Retention, in: International Journal of Research in Marketing, Vol. 26, 3, S. 207–215.
4. Blattberg, R.C./Getz, G./Thomas, J.S. (2001): Customer Equity, Boston: Harvard Business School.
5. Burson-Masteller (2010): The Global Social Media Check-up. Insights from the Burson-Marsteller Evidence- Based Communications Group.
www.burson-marsteller.com/Innovation_and_insights/blogs_and_podcasts/BM_Blog/Documents/Burson-Marsteller%202010%20Global%20Social%20Media%20Check-up%20white%20paper.pdf