hrThe <hr> element creates a horizontal line in most browsers. It has a semantic meaning as well though as a type of break. I will be using it often to up example filess when I want to display multiple tags in one file.
addressThe <address> element indicates that the text is a specific address, perhaps contact information for the author, eg,
1715 Walnut Blvd
Ashtabula, OH 44004
blockquoteThe <blockquote> element is used for extended quotations. It is often paired with the the cite attribute in order to show or link the source of the quote.
“If something seems particularly hard, there is usually no value in staying up all night and staring at it. Take a break, take a nap, have a snack, explain what you are having a problem with to someone (or perhaps your dog), and then come back to it with fresh eyes. - Charles Severance”