This site is full of free educational worksheets for PreK to Grade 5–especially useful if you are looking for worksheets to give a young student extra practice with reading or math skills.
This website is a good source if you are looking for books by subject or level.
The Michigan Electronic Library not only allows you to interloan materials, it also has a wealth of databases that are useful for students. Inside you will find many useful resources, including:
MeL’s offerings are broader for high school students. Enter the teen portal here to find scholarly articles for reports, college exam preparation resources, and resume building.
LearningExpress Library.
Job and Career Accelerator
Computer Skills Center.
Explora & Brittanica
The Purdue University Online Writing Lab (aka Purdue OWL) has an excellent citation generator. The site has lots of useful information about writing research papers, and is best for high school students.
The Citation Machine is another helpful option. This one is better for younger children (elementary and middle school.)
This citation generator is loved by librarians and is run by the Online Computer Library Center.