Below is a list of all the Ultimate Resources lists that I have published. Each list contains reputable sources of information about topics relevant to middle and high school students. They're great for filling in background information, and giving students a jumping off point for argumentative, narrative, and informational writing projects. Each list contains articles, videos, interactives, if possible, and a list of lesson/project ideas for your students.
Note: If you know of a resource I need to include on one of these lists, please tell me about it in the comments.