Heartland Digital Commerce
https://sites.google.com/a/aea11.k12.ia.us/heartland-digital-citizenship/commerce
PEW Research about eCommerce
https://www.pewinternet.org/2016/12/19/online-shopping-and-e-commerce/
Lifelock Tips for Safe Online Shopping
https://www.lifelock.com/learn-internet-security-safe-online-shopping.html
Is PayPal Safer than Credit Cards?
https://www.thestreet.com/personal-finance/is-paypal-safe-14646847
Methods for Sending Money Comparison
https://www.nerdwallet.com/blog/banking/faq-send-money-individual/