Find an article, court case or video (on YouTube) or other source on a breach of contract. Post a link to the article, court case, or video along with a brief summary of the article, court case, or video.
Explain why you thought the article and summary contributed to the article

There is a specific requirement that web page merchants (Amazon, Barnes and Noble, Apple Store) must follow in order to incorporate the terms of their contract in order to have those terms enforceable (part of the contract).

What does the web page seller have to do in order to incorporate the terms of the agreement?
Give an example with a link to a web page that follows this procedure.
What do you think would happen if the merchant did not follow the procedure?
Why?