Visit several e-commerce sites Share the list of Websites visited minimum 15 websites evaluate two different E-Commerce websites websites with each other according to the eight basic criteria/ functionalities which is

Functionality,Informational, Ease of use,Redundant navigation,Ease of purchase,Simple graphics,Legible text

choose one site you feel does an excellent job on all the aspects of an effective site design, include screen shots, to support your choice.