Originally at https://searchenginewatch.com/2016/03/31/dictionary-of-ad-buying-key-terms-and-acronyms/

For beginners, buying ads can be a confusing labyrinth of jargon and acronyms. To help you make sense of them, we’ve compiled this helpful glossary.

If you’re new to buying ads, you may not know where to begin. There are a lot of terms; some, like targeting, are fairly obvious, while others just seem like an alphabet soup of acronyms. If you’re like, “AMP, CPC, DSP, what?” fear not. We’re here to help.

We’ve separated this glossary into three categories:

Before – where we define the different kinds of ads.
During – is about the terms you’ll come across while in the purchasing stage, such as “ad exchange,” which is very different from an “ad network.” 
After – breaks down some of the things that happen once your ad has made its way to the Internet.

First, let’s go back to the beginning.

Before

The first thing you should know is the difference between the various kinds of ads you may be buying. In case you missed our beginner’s guide to display advertising, here’s a brief refresher.

Display ad: ads on webpages that are obviously advertising. Display ads are measured in pixels – picture elements, or the dots that make up pictures – and come in several forms. There are the rectangles and squares we’re not going to bother defining because we’re confident you’ve been to first grade, as well as a few others whose names aren’t so self-explanatory.

Banner ad: The horizontally long, vertically short ads most commonly placed at the top (leaderboards) or bottom of the page. According to Google, the ones that perform best are 728×90 and 320×110. Banners can also take a more tall, narrow form in skyscraper ads, which run alongside the page.
Billboard: similar to banner ads, but a bit taller. With that extra height, billboards better lend themselves to text.
Button: a…

For Your Full SEO Site Report visit http://nationwideseo.com.au/site-report/