The eDarling Project is a collaborative effort between psychological scientists at the Humboldt-Universität zu Berlin and the University of Southampton. The project is supported by the online-dating site eDarling.
eDarling is one of the largest online dating-sites in Europe. The eDarling Project utilizes the eDarling data set, which comprises data from over 180,000 online-daters across 11 European countries. The data set allows testing divergent research questions. Results are published in scientific journals and summaries of the results can be found on the eDarling Perspectives Blog. For example, we have recently examined the psychological benefits of religiosity (Gebauer, Sedikides, & Neberich, in press). Religiosity was related to higher social self-esteem and better psychological adjustment. Crucially, however, this pattern was due to relatively strong statistical relations in religious countries (e.g., Poland). In non-religious countries (e.g., Sweden), religious believers did not report higher social self-esteem and better psychological adjustment than non-believers.
Gebauer, J. E., Sedikides, C. & Neberich, W. (in press). Religiosity, social self-esteem, and psychological adjustment: On the cross-cultural specificity of the psychological benefits of religiosity. Psychological Science. Advance online publication. doi: 10.1177/0956797611427045