8th Grade Vocabulary
Sheppard Software Language Arts
7-12 UEN Language Interactives
English audiobook
English audiobook: dramatic reading
English Audiobook
For more check out Librivox
Librivox: Children's Literature
For more Spanish audiobooks check:
Librivox Spanish
For Spanish ebooks
International Children's Digital Library: Spanish
Project Gutenberg Spanish
The Bluford series now have free audiobooks for download on their website:
https://www.bluford.org/audiobooks/