1. Mai, L. M., Freudenthaler, R., Schneider, F. M., Vorderer, P., ‘‘I know you’ve seen it!’ Individual and social factors for users’ chatting behavior on Facebook’, Computers in Human Behavior. 49, August 2015, 296–302. Available from: doi: 10.1016/j.chb.2015.01.074
2. Ashmore, J., ‘Labour MP apologises after ‘bollocks position’ WhatsApp message’ [online], Politics Home. Available from: https://www.politicshome.com/news/uk/political-parties/labour-party/news/82828/labour-mp-apologises-after-bollocks-position
3. Wall, H. J., Kaye, L. K., Malone, S. A., ‘An Exploration of Psychological Factors on Emoticon Usage and Implications for Judgement Accuracy’, Computers in Human Behavior, 62, September 2016, 70–78. Available from: doi: 10.1016/j.chb.2016.03.040
4. Rossignol, J., ‘Apple Says ‘Face With Tears of Joy’ is Most Popular Emoji in United States Among English Speakers’ [online], MacRumors, 2017. Available from: https://www.macrumors.com/2017/11/03/face-with-tears-of-joy-most-popular-emoji/
5. Adamic, L., Develin, M., Weinsberg, U., ‘The Not-So-Universal Language of Laughter’ [online], Facebook Research, 2015/ Available from: https://research.fb.com/the-not-so-universal-language-of-laughter/