Here’s an example of where students today have some great resources that just weren’t available when I was in school. Darthmouth College has put together a site on the hows and whys of citations. It’s not the Chicago Manual of Style, but it’s easy to use and covers the most common cases, including citation rules for electronic formats. I particularly like that they give examples of correct citations following different style guides across the humanities and science. A must-bookmark for the high school or junior-high kid in your life!