Great student-friendly resources.
Free Android Phone app: https://play.google.com/store/apps/details?id=com.dropbox.android
Google Chrome app: https://chrome.google.com/webstore/detail/ioekoebejdcmnlefjiknokhhafglcjdl
Free iPad app: http://itunes.apple.com/us/app/dropbox/id327630330?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/dropbox/id327630330?mt=8&uo=4&at=10l6SU
Free Mac program: https://www.dropbox.com/downloading?os=mac
Free Windows program: https://www.dropbox.com/downloading?os=win
Website: https://db.tt/dUahryRn
Free Android Phone app: https://play.google.com/store/apps/details?id=com.evernote
Google Chrome app: https://chrome.google.com/webstore/detail/pioclpoplcdbaefihamjohnefbikjilc
Mozilla Firefox extension: https://addons.mozilla.org/en-US/firefox/addon/evernote-web-clipper/
Free iPad app: http://itunes.apple.com/us/app/evernote/id281796108?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/evernote/id281796108?mt=8&uo=4&at=10l6SU
Free Mac program: http://itunes.apple.com/us/app/evernote/id406056744?mt=12&uo=4&at=10l6SU
Apple Safari extension: http://evernote.com/download/get.php?file=SafariExtension
Free Windows program: http://evernote.com/download/get.php?file=Win
Website: http://www.evernote.com/
Free Android Phone app: https://play.google.com/store/apps/details?id=com.fusionprojects.edmodo
Free iPad app: http://itunes.apple.com/us/app/edmodo/id378352300?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/edmodo/id378352300?mt=8&uo=4&at=10l6SU
Website: http://www.edmodo.com/
Google Chrome app: https://chrome.google.com/webstore/detail/edmodo/fpcdidgjjebefhmlhjlgnkahlimgaemc
Website: http://www.wordle.net/
Free Android Phone app: https://play.google.com/store/apps/details?id=com.google.android.apps.docs
Google Chrome app: https://chrome.google.com/webstore/detail/google-drive/apdfllckaahabafndbhieahigkjlhalf
Free iPad app: https://itunes.apple.com/us/app/google-drive/id507874739?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/google-drive/id507874739?mt=8&uo=4&at=10l6SU
Website: http://docs.google.com/
Free iPad app: https://itunes.apple.com/us/app/google-earth/id293622097?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/google-earth/id293622097?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.google.earth
Free Mac program: http://www.google.com/earth/download/
Free Windows program: http://www.google.com/earth/download/
Google Chrome app: http://www.google.com/earth/explore/products/plugin.html
Mozilla Firefox extension: http://www.google.com/earth/explore/products/plugin.html
Apple Safari extension: http://www.google.com/earth/explore/products/plugin.html
Website: http://sites.google.com/
Website: http://www.khanacademy.org/
Free iPad app: https://itunes.apple.com/us/app/id469863705?mt=8&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/id469863705?mt=8&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=org.khanacademy.android
Free Android Tablet app: https://play.google.com/store/apps/details?id=org.khanacademy.android
Edmodo app: https://spotlight.edmodo.com/product/khan-academy,324527/
Website: https://twitter.com/
Free iPad app: https://itunes.apple.com/us/app/id333903271?mt=8&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/id333903271?mt=8&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.twitter.android
Free Android Tablet app: https://play.google.com/store/apps/details?id=com.twitter.android
Free Mac program: https://itunes.apple.com/us/app/twitter/id409789998?mt=12&uo=4&at=10l6SU
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
Free iPad app: http://itunes.apple.com/us/app/itunes-u/id490217893?ls=1&mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/itunes-u/id490217893?ls=1&mt=8&uo=4&at=10l6SU
Free Mac program: http://audacity.sourceforge.net/download/
Free Windows program: http://audacity.sourceforge.net/download/
Website: https://educlipper.net/
Free iPhone app: https://itunes.apple.com/us/app/educlipper/id737584066?mt=8&uo=6&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/educlipper/id737584066?mt=8&uo=6&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/educreations-interactive-whiteboard/id478617061?mt=8&at=10l6SU
Website: https://www.vyond.com/
Paid iPad app: https://itunes.apple.com/us/app/id512507120?mt=8&uo=4&at=10l6SU
Paid Android Phone app: https://play.google.com/store/apps/details?id=com.abitalk.sentencesbuilder
Free Windows program: http://www.alice.org/kelleher/storytelling/download.html
Paid iPad app: https://itunes.apple.com/app/kids-book-report/id388049087?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/sentencebuilder-for-ipad/id364197515?mt=8&uo=4&at=10l6SU
Website: http://www.brainnook.com/
Edmodo app: http://www.edmodo.com/publisher/brainnook
Physical product: https://www.playmonster.com/brands/roominate/
Website: http://www.grammaropolis.com/
Paid iPhone app: https://itunes.apple.com/us/app/grammaropolis-complete-edition/id580476057?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/grammaropolis-complete-edition/id580476057?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/grammaropolis/id559851814?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/grammaropolis/id559851814?mt=8&uo=4&at=10l6SU
Website: http://www.rosettastone.com/
Paid Mac program: http://www.rosettastone.com/
Paid Windows program: http://www.rosettastone.com/
Free iPad app: https://itunes.apple.com/us/app/storypanda-books-making-kids/id521512463?mt=8&uo=4&at=10l6SU
Website: http://www.gradinggame.com/prototype.html
Paid iPad app: https://itunes.apple.com/us/app/the-grading-game/id564853076?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/the-grading-game/id564853076?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/itooch-8th-grade-language/id521724434?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/itooch-8th-grade-language/id521724434?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/itooch-7th-grade-language/id521723598?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/itooch-7th-grade-language/id521723598?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/itooch-6th-grade-language/id521723371?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/itooch-6th-grade-language/id521723371?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/us/app/grammar-app/id377188655?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/us/app/grammar-app/id377188655?mt=8&uo=4&at=10l6SU
Website: http://www.dpbolvw.net/click-6289941-10952832
Website: http://www.sophia.org/
Free iPad app: https://itunes.apple.com/us/app/lexia-reading/id555676901?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/mathletics-student/id560955922?mt=8&uo=4&at=10l6SU
Website: https://www.tabtor.com/
Website: http://www.scilearn.com/products/fast-forword-literacy-series/literacy-advanced/
Free iPhone app: https://itunes.apple.com/us/app/geoboard-by-math-learning/id519896952?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/geoboard-by-math-learning/id519896952?mt=8&uo=4&at=10l6SU
Website: http://www.mathlearningcenter.org/web-apps/geoboard/
Google Chrome app: https://chrome.google.com/webstore/detail/geoboard-by-the-math-lear/gaakmmdiopnmcenkojohldanladpajak
Website: http://learnzillion.com/
Free iPad app: http://itunes.apple.com/in/app/tiny-chicken-learns-math/id490114227?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/in/app/tiny-chicken-learns-math/id490114227?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/reading-rainbow/id512350210?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/icdl-free-books-for-children/id363731638?mt=8&uo=4&at=10l6SU
Website: http://www.childrenslibrary.org/
Paid iPad app: https://itunes.apple.com/us/app/handwriting-without-tears/id548753732?mt=8&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/handwriting-without-tears-wet-dry-try-for-capitals/id623327604?mt=8&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/flipagram/id512727332?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/flipagram/id512727332?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.cheerfulinc.flipagram
Paid iPad app: https://itunes.apple.com/us/app/easy-blog-jr/id716354615?mt=8&uo=4&at=10l6SU
Paid iPhone app: https://itunes.apple.com/us/app/easy-blog-jr/id716354615?mt=8&uo=4&at=10l6SU
Free iPad app: https://itunes.apple.com/us/app/leos-pad-preschool-kids-learning/id566773525?mt=8&uo=4&at=10l6SU