"Yesterday, Google introduced add-ons for Google Docs and Sheets. These add-ons allow you to add all kinds of functionality to your documents, including signing faxes, creating bibliographies, and more. While it's still in its infancy, here are a few of the best add-ons available at launch. "
Celery is a simple system that allows non-computer users to "be included" in email using the Celery device and service, which automatically prints incoming emails for them, and instantly sends their outgoing pen-and-paper messages as email.
Simple private real-time sharing and collaboration. Use drop.io to privately share your files and collaborate in real time by web, email, phone, mobile, and more. Create each drop in two clicks and share what you want, how you want, with whom you want. Check out the 'How To' video. Drop.io is another great site for parents to upload photos quickly for teachers to access. Like Troovi, the teacher would create the drop.io site, set a password, and send the link to parents. Parents simply upload their photos, video, and files to the site and the teacher can download them instantly.