- Brainfuse (Live Homework Help)
- hoonuit (Computer Tutorials)
- LearningExpress Library (Test Prep)
- Mango Languages (Language Learning)
Nonfiction Core Collection is a guide to recommended nonfiction titles for adults. Entries are continuously updated and provide complete bibliographic data, price, subject headings, a descriptive annotation and evaluative quotations from a review when available, plus information on electronic editions of works.