https://www.techtarget.com/searchcio/definition/e-commerce
https://www.cloudways.com/blog/ecommerce-business-models/?data1=18059204530&data2=&id=290872&gclid=Cj0KCQjw6_CYBhDjARIsABnuSzrPdZbMGyw8K8bkW4O8ETskBtEm_f3JF-TXFxTIJsmRAHSVJ5LLtwIaAg4iEALw_wcB