Robert Emrich's favorite tools.
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
Paid iPhone app: https://itunes.apple.com/us/app/pages/id361309726?mt=8&uo=4&at=10l6SU
Paid iPad app: https://itunes.apple.com/us/app/pages/id361309726?mt=8&uo=4&at=10l6SU
Paid Mac program: http://itunes.apple.com/us/app/pages/id409201541?mt=12&uo=4&at=10l6SU
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 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://phet.colorado.edu/
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
Paid iPad app: http://itunes.apple.com/app/wolfram-algebra-course-assistant/id410592976?mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/app/wolfram-algebra-course-assistant/id410592976?mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/app/wolfram-pre-algebra-course/id453096829?ls=1&mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/app/wolfram-pre-algebra-course/id453096829?ls=1&mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/app/wolfram-physics-ii-course/id455760886?ls=1&mt=8&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/app/wolfram-physics-ii-course/id455760886?ls=1&mt=8&uo=4&at=10l6SU
Paid iPad app: http://itunes.apple.com/app/wolfram-physics-i-course-assistant/id443476961?mt=8&ls=1&uo=4&at=10l6SU
Paid iPhone app: http://itunes.apple.com/app/wolfram-physics-i-course-assistant/id443476961?mt=8&ls=1&uo=4&at=10l6SU