Life, Humans, Earth, Space and Physics are the main categories that are listed on the home page. Along with print articles, there are videos, data visualizations and more available. It is easy to find relevant articles and media for whatever your interest. A special section for students presents highly graphic and easy to read items with subject matter geared toward the younger reader.
I found very minimal school and science related advertising on the website. Articles did include magazine and headline subscription promotions. Citation and author information can be found at the end of each article.
I spent a wonderful afternoon exploring the various articles and reading the news. Of course, Space is my favorite section. I found very interesting reading in a number of articles by Lisa Grossman, the astronomy writer. Click on the link above and enjoy!