We created our own measures for Facebook engagement with friends through tagging and apps. We asked participants, “How often do you perform the following activities on Facebook?” They were presented with options on a 5-point scale, ranging from 1 (never) to 5 (every day). We also captured contextual variables and other information regarding Facebook usage relevant to tagging and apps. Before launching the survey, we piloted our measures with a group of 26 computing students within our college. The final psychometric properties of our constructs are presented in Appendix B, Table A2.