García-palomares, J. C., Guti, J., & Mínguez, C. (2015) Identification of tourist hotspots based on social networks: A comparative analysis of European metropolises using photo-sharing services and GIS. Applied Geography, 63, 408–417. http://doi.org/10.1016/j.apgeog.2015.08.002
Hanna, R., Rohm, A., & Crittenden, V. L. (2011) We’re all connected: The power of the social media ecosystem. Business Horizons, 54, 265–273. http://doi.org/10.1016/j.bushor.2011.01.007
Hays, S., Page, S. J., & Buhalis, D. (2013) Social media as a destination marketing tool: its use by national tourism organisations. Current Issues in Tourism, 16(3), 211–239.
Johnson, P. A., Sieber, R. E., Magnien, N., & Ariwi, J. (2012) Automated web harvesting to collect and analyse user-generated content for tourism. Current Issues in Tourism, 15(3), 293–299.
Kaplan, A. M., & Haenlein, M. (2010) Users of the world, unite! The challenges and opportunities of Social Media. Business Horizons, 53, 59–68. http://doi.org/10.1016/j.bushor.2009.09.003
Kietzmann, J. H., Hermkens, K., Mccarthy, I. P., & Silvestre, B. S. (2011) Social media? Get serious! Understanding the functional building blocks of social media. Business Horizons, 54, 241–251. http://doi.org/10.1016/j.bushor.2011.01.005