H1a assumed that being logged in to Facebook arouses higher levels of impression motivation than when reading the same article in a newspaper or on online news sites. The presumed effect of the medium was tested with a planned contrast analysis that compared the newspaper conditions (contrast weight: −1) and the online conditions (−1) with the Facebook conditions (+2) regarding the level of reported impression motivation. However, the analysis did not reveal a significant difference, t(345) = −0.63; p = .532, rcontrast = .03. To test whether expecting an SNS discussion arouses higher impression motivation (H1b), the analysis focused on the subsample of the Facebook conditions and compared responses of participants who were informed about the upcoming task to post in a Facebook discussion group (+2) with those who expected an FTF discussion (−1) and no discussion (−1). Results showed a significant contrast, t(141) = 2.09; p = .039, rcontrast = .17, in that the SNS discussion (M = 3.27, SD = 1.45) aroused higher levels of impression motivation than the FTF discussion (M = 2.81, SD = 1.62) and no discussion (M = 2.59, SD = 1.41) in the Facebook setting. Thus, H1a has to be rejected, whereas H1b is supported by the data.