- Songs and Hymns of Zion
- Songs of Innocence and of Experience: William Blake's Illuminated Book
- Songtham Library
- Song Treasures
- Sons of the Cherry
- SOOK Library
- Sophie the Sweater
- Sophie's Stories
- Sora, by OverDrive Education
- SORARI - nonAD
- Sorcery Is for Saps
- Sorcery!
- Sorcery! 2
- Sorcery! 3
- Sorcery! 4
- SORI BOOK
- Sorry I Love You AR
- Sort & Bubbles
- SOS Waste
- Soul of Remedies - Homeopathy
- Soulway - Daily Bible Verse
- Sound Novel Oku
- Sound of Magic - HörSpiel
- Sound Out Chapter Books
- SoundAbout
- Soundbook - аудиокниги.
- Soundbook Ebooks & Audiobooks
- SBT Direct
- Sounds for Kids -lite
- Sourate-Surah Yusuf MP3 ( سورة يوسف كاملة بالصوت )
- Sounds for Kids -lite
- Sourate-Surah Yusuf MP3 ( سورة يوسف كاملة بالصوت )
- SourceView Bible
- South Carolina Code Of Laws
- South Carolina DMV Test Guide
- South Dakota Codified Laws
- South Dakota DMV DPS Exam Prep
- Soybean Diseases
- Sozler - Risale-i Nur
- Space & Solar Facts in Hindi
- Spacing Out
- Spanish - English Translator
- Spanish−English dictionary
- SPANISH ABC 123 Reading Writing Practice