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We drew on 2 theoretical frameworks—the technology acceptance model (TAM) and uses and gratifications theory (UGT)—to examine the underlying factors that affect the intention to continue using the global social networking site, Instagram. We proposed 2 perceptual factors from the TAM related to use (perceived ease of use and perceived usefulness) and gratification factors from UGT (social interaction, entertainment, information, and self-expression) as key determinants of the intention to continue using Instagram. Participants were 371 college students in South Korea, who completed an online survey. Results showed that perceived ease of use and gratification of both social interaction and entertainment had a positive impact on users' intention to continue using Instagram. These findings advance theoretical and practical understanding of the increasing popularity of Instagram.

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This study aimed to investigate the role of emoticons in text messaging on mobile phone. Results from a sample of 126 college students in Korea showed that motivations of emoticons use were entertainment, fashion, expressing personal emotions/intimacy, managing message meaning, and regulating conversation. These findings indicated that emoticons use was highly related to socioemotional context in mobile communication. Furthermore, the study found that there were gender differences in motivations of emoticons use: female students were more likely to use emoticons to express emotions/intimacy and manage message meaning than male students. Based on these findings the study suggested that emoticons played a role as a facilitator that supplements users' emotion and interpretation of message.