Canva creates amazingly beautiful flyers, posters, and other graphic designs using customizable templates and easy click-and-drag editing. One of the best "freemium" graphic design tools on the web, though it does charge for extra images.
Google Drive enables any number of people to edit and collaborate on documents and presentations. Consider using Google Forms to create paperless class surveys. Google Apps for Education offers a comprehensive suit of tools.
Padlet is a fun, useful tool for creating virtual bulletin boards. Pin documents, videos, text, and links to your shared "wall." A similar tool for creating and collaborating is called Thinglink.
The Wayback Machine lets you plug in any URL to discover how the web has changed over time. Archives include an amazing 426 billion versions of webpages!
Qzzr is a simple online quiz tool that allows you to quickly create beautiful quizzes, post them anywhere on the web, view on any device, and track results.
Take the headaches, frustration, painfulness out of creating tutorials and just leave with something sparkly that you can serve to your users.
Create beautiful application instructions in under 5 minutes.
Twine is an open-source tool for creating interactive stories and games. No knowledge of code is needed to create a story. Check out the library's APA Game, which was made with Twine!