eBook Central
eBook subscription database (over 12,000 titles) to support multiple subject areas (English Language Arts, Science, Math, Social Studies, Health, Physical Education, Information Literacy and Technology).
(Grades 9+, possibly some content for Middle School, also includes professional development content for faculty)
This database requires creating an account while on the district network. It is independently searchable for older students, but teachers can find many resources to use with younger students (try juvenile fiction or juvenile non-fiction subject headings).