The Avalon Project is a project by Yale University to get primary resources for students. On the site, there is historical documents in text form. This is extremely useful for social studies.
Video science is an that has over 80 hands at work making videos to help children in the curiosity of science. It also has hands on experiments that are easy to do. Lastly it is just a cool way to explore the world of science.
myHomework is an app that works on the majority of smart phones and is designed to help students keep track of their classes. Enter your schedule in day or block format and keep track of assignments and due dates. "If you're looking for one schedule and homework reminder service that you can recommend to all of your students regardless of which mobile operating system they use, myHomework is worth trying out" (Richard Byrne).
OneLook Reverse Dictionary is good for those words that you just cannot remember what they are but can describe them, those "tip of the tongue" moments. Just type in the description of the concept you have in mind and OneLook returns with a list of terms and phrases relevant to that concept.
Project Gutenberg offers countless ebooks that are open to the public and are for free. They can be downloaded or read online. The books range from several categories.
Tutsearch is an online tutorial website. It has tutorials for anyone who needs help with a certain subject. It is especially helpful for anyone in college or a senior who is looking for a path.
The garden of praise offers free biblical as well as grade school education. The garden of praise also offers free lesson plans to teachers an online quizzes to students.
This is an amazingly useful app that allows you to put sticky notes any where on your device. This app's function is exactly as the title states floating sticky notes. This app is exclusive to Android.
This site allows you to create trading cards for any purpose. you could create cards filled with historical facts about a person (fictional or real). You could fill the card with information about a landmark or location. you could even use this site to create cards for a game. To sum it up, this website could be used to study or play a nice card game that you just created.
Soo Meta allows you to create short movies from videos (your own or from Youtube), pictures, text, or recordings. This is helpful for projects requiring a movie (ex: book trailer or a showcase).
This website is a place where you can learn about anything. For example if you don't understand what you learned in school, just visit the website and learn on your own.
How to Smile is a community of teachers that has submitted over 3,000 hands-on and interactive STEM activities. How to Smile offers desktop and mobile versions of the website. It offers activities that are both virtual and physical.