By Arthur Williams Have you ever clicked on a website to learn something new or buy a product, only to be met by an ad that came out of nowhere? If so, you have encountered a pop-up, which is one of the more harmful aspects of the Internet experience. Any Long Island SEO specialist can agree, seeing as how pop-ups can negatively impact the user experience in general. Here are a few ways that these particular ads negatively affect search engine optimization. you'll feel inclined to click away.-...