The function of self-disclosure on social network sites: Not only intimate, but also positive and entertaining self-disclosures increase the feeling of connection.

•Three alternative models how updates on Facebook create closeness are tested.•The more intimate communication on Facebook is hidden in private conversations.•Here, the classical link between intimacy and feeling of connection holds.•Positive and entertaining updates also increase the feeling of connection.•Interaction partner responsiveness plays no significant role on social media.