1. http://journals.uoc.edu/index.php/rusc/article/view/v8n1-globalizacion-e-internacionalizacion-de-la-educacion-superior
2. http://www.pewinternet.org/
3. http://epress.lib.uts.edu.au/journals/index.php/publicspace/article/view/1493
4. https://landing.athabascau.ca/blog/view/10336/call-for-papers-impact-of-social-networks-on-teaching-and-learning