BeQRious allows the free creation of QR Codes. QR Codes can be used for texts, links, email, images, Twitter and Facebook (among others).
Edmodo is essentially an educational version of Facebook that is cut off from the public and that allows the teacher to control what is posted.
KidBlog allows students to create their own blogs in a "safe and simple" environment.
Nearpod is a presentation tool that allows the presenter to control what the audience sees on their screens. It can also be used to collect information via polls and/or quizzes.
SMART Response VE
SMART Response VE is an assessment tool that gives instant feedback to both students and teachers. It can be used through any web-enabled device (including iPods and iPads in the classroom).
SMART is a Canadian based company that is best known for their SMART Board line of interactive whiteboards.