- Stanford Encyclopedia of Philosophy
- Internet Encyclopedia of Philosophy - A Peer-Reviewed Academic Resource.
- Modern Stoicism
- The Skeptic's Dictionary
- LessWrong - Community blog and forum focused on discussion of cognitive biases, philosophy, psychology, economics, rationality, and artificial intelligence.
- plainlanguage.gov - Community of federal employees dedicated to the idea that citizens deserve clear communications from government.
- Poetry Foundation
- Roger Ebert (Official website)
- R. L. Stine's Writing Program
- SparkNotes - Source for help with Shakespeare and English literature, plus history, math, biology, and more.
- Shmoop's Study Guides
- PoeStories - Short stories and poems by Edgar Allan Poe.