Google Apps for Education app: https://www.google.com/enterprise/marketplace/viewListing?productListingId=6546+12747060046611723303
Website: http://www.learnboost.com/
Google Chrome app: https://chrome.google.com/webstore/detail/learnboost/lfbigbedbdencpbioocekehcblgokpno
Paid iPad app: http://itunes.apple.com/us/app/collaborize-classroom-pro/id512701825?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/collaborize-classroom/id497540468?mt=8&uo=4&at=10l6SU
Website: http://www.collaborizeclassroom.com/
Website: http://www.edu20.org/
Free iPad app: http://itunes.apple.com/us/app/teacherpal/id389584618?mt=8#&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/teacherpal/id389584618?mt=8#&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.socrative.teacher
Free iPad app: https://itunes.apple.com/us/app/teacher-clicker-socrative/id477620120?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/teacher-clicker-socrative/id477620120?mt=8&uo=4&at=10l6SU
Website: http://www.socrative.com/
Edmodo app: http://www.edmodo.com/publisher/socrative
Google Chrome app: https://chrome.google.com/webstore/detail/socrative-teacher/ofajgnplnindhnhnconjocimijjifaln?hl=en
Free Android Phone app: https://play.google.com/store/apps/details?id=com.socrative.student
Free iPad app: https://itunes.apple.com/app/student-clicker-socrative/id477618130?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/app/student-clicker-socrative/id477618130?mt=8&uo=4&at=10l6SU
Website: http://www.socrative.com/
Edmodo app: http://www.edmodo.com/publisher/socrative
Google Chrome app: https://chrome.google.com/webstore/detail/socrative-student/nblhpecglllndfihipmpdoikimcmgkha
Website: http://www.google.com/google-d-s/forms/
Google Chrome app: https://chrome.google.com/webstore/detail/google-forms/jhknlonaankphkkbnmjdlpehkinifeeg
Website: https://quizlet.com/
Edmodo app: http://www.edmodo.com/publisher?uid=507204
Free iPhone app: https://itunes.apple.com/us/app/quizlet/id546473125?mt=8&uo=4&at=10l6SU
Google Chrome app: https://chrome.google.com/webstore/detail/quizlet/bgofflgeghkhocbociocnckocbjmomjh
Website: http://www.blendspace.com/
Edmodo app: http://www.edmodo.com/publisher/edcanvas
Free iPad app: http://itunes.apple.com/us/app/teach/id527216211?mt=8&uo=4&at=10l6SU
Website: http://www.commoncurriculum.com/
Website: http://teachingobjects.net/