Storyline Online is available 24 hours a day for children, parents, caregivers and educators worldwide. Each book includes supplemental curriculum developed by a credentialed elementary educator, aiming to strengthen comprehension and verbal and written skills for English-language learners. Storyline Online is a program of the SAG-AFTRA Foundation. The Foundation is a nonprofit organization that relies entirely on gifts, grants and donations to fund Storyline Online and produce all of its videos.