Evernote is a modern workspace that helps you to be your most productive self. It allows you to write notes of all types, collect web articles and handwritten notes and then find your work quickly with Evernote's extensive search feature.
Evernote can be used by teachers in order to keep track of any number of personal and professional notes in a single well organized and accessible place. You can also colaborate with other teachers using shared notebooks. This would be a great way to get your colleagues observations on students and their progress. It's a great way to stay organized and keep track of the many things you need to remember as an educator.
Dropbox lets you bring all your photos, docs and videos from anywhere and share them easily. You can access any file you save to your dropbox from all your computers, iPhone or iPad.
For teachers this is an excellent way to gather resources and then always have them ready at your class. Whenever you see a video, or read an article that could be useful for your class you can simply put it in your dropbox. You then know you will have this resource available anytime you need it.
Teacherkit is described as a teachers swiss army knife. Teacher kit help you organize classes and students easily.
Teacher kit allows you to create seating charts, record attendance, log behaviour, and track grades all with a few taps. This tool could reasonably double a teachers efficiency when dealing with such things as classroom organization, behaviour monitoring and grading. It's incredibly useful for all classroom related matters.
Flashcards is a free easy to use studying app with material for any class or standardized test. You can also create and share your own flashcards with others.
I think this could be a great way to help your students study, since they could really go through their study material any time, any place and at any pace. You could also create flashcards specifically designed for your class. Students could even create their own and share them with the rest of the class. This could be a great in class study activity.
Ted gives you access to talks from some of the world's most fascinating people, and is a fantastic source of information.
Though Ted talks are not specifically education related I find them to be a fantastic source of inspiration. You will be able to find a fascinating and well delivered view point on nearly any subject imaginable. This is great both for your own personal inspiration for the classroom but also to show your students.