- Edmodo -- "Edmodo provides teachers and students a secure place to connect and collaborate, share content and educational applications, and access homework, grades, class discussions and notifications."
- Google Drive-- store and share files & collaborate on documents, spreadsheets, and more
- Download your data from Drive with Google Takeout -- downloads all of your files at once as Microsoft files (docx, pptx, etc.).
- Google Book Cloud -- collaborative learning tool to use with online books, poems, stories, etc.
- Teamwork.com -- free online application that keeps track of tasks, offers templates, file sharing, and video conferencing. The paid version integrates with Google Docs and Drop Box.
- Mixbook -- create collaborative photo albums and books