Good resource for background information
World History Encyclopedia is a good resource, but it is better used as a tool for educators to become more familiar with their topic, especially if they teach anything having to do with the ancient world. The articles are not always very accessible (at least for the average sixth grader) and many of the articles on similar topics are written by the same person.
How I Use It
I use World History Encyclopedia all the time to teach my ancient civilizations course to sixth graders. I often find myself looking up information on world history encyclopedia about topics that we will be covering in class to have extra information and make history come alive for my students. I use it so much it's on my toolbar!