It should be noted that not all the websites are the same, and neither are their audiences. So there cannot really be a set list of norms that is equal for all the websites. After all what may be good looking for older people may just be plain boring for teenagers and vice versa. Therefore, more than it is important to stick to the basic rules and regulations, it is necessary to design for the niche audiences and what would please them. There should be an ideal balance between the basic fundamentals of web design and customized approach towards the design process.

Drag and Drop can already be used in Gmail when adding attachments and will likely be seen implemented into more and more websites. This is a great option for eCommerce sites!