This paper outlines the complexity of the psychological construct of individuals' subjective well-being (SWB) and argues for the importance of examining behaviours and linguistic expression of individuals online social interactions in relation to self-reported SWB. This paper calls for a systematic review of the psychology research which examines SWB and its association with various character strengths, personality traits, and behaviours. While the Big Five personality traits (OCEAN) have an underlying neuropsychological basis and are considered as universal dimensions of personality along which humans differ one from another, minimal research has attempted to evaluate the relationship between personality traits, SWB, and online interactions.