https://www.smartbugmedia.com/blog/how-to-build-a-buyer-persona-the-quick-and-dirty-guide
http://www.ebizmba.com/articles/social-networking-websites
https://www.intercom.com/blog/the-top-2018-marketing-statistics-and-why-they-matter/
https://www.youtube.com/user/GaryVaynerchuk
http://blog.qsample.com/ingredients-to-a-survey-consumers-will-actually-want-to-take-infographics/
https://www.youtube.com/watch?v=3WX54dRt0CU
https://www.facebook.com/facebook/videos/10156988765141729/
https://www.youtube.com/watch?time_continue=50&v=eb6v2Ktdn8s
http://www.jonloomer.com/2015/02/16/multi-product-facebook-ads/
https://help.pinterest.com/en/articles/build-save-it-button-your-site
https://help.pinterest.com/en/articles/enable-rich-pins-your-site