Despite reading pages upon pages about the and
tags I really don\'t understand how to apply them to my site.
I
is for an independent piece of content that should make sense even if all of it's surrounding content is stripped away.
is more of a generic container that's quite similar to div tag and mostly used for content structuring. So the right code should be like this:
Product title
Description
Price
Related products
Product 1
Price
Product 2
Price
Product 3
Price
Also HTML 5 doctor's got a great Flowchart if you get confused picking the right HTML5 semantic element for your need. You can give it a try and see if it helps.