Here are all the apps/tools that I have used on any given day.
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/educreations-interactive-whiteboard/id478617061?mt=8&at=10l6SU
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: 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
Free Android Phone app: https://play.google.com/store/apps/details?id=com.facebook.katana
Google Chrome app: https://chrome.google.com/webstore/detail/facebook-notifications/nmameahlembdcigphohgiodcgjomcgeo
Mozilla Firefox extension: https://addons.mozilla.org/en-US/firefox/addon/facebook-toolbar/
Free iPad app: https://itunes.apple.com/us/app/facebook/id284882215?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/facebook/id284882215?mt=8&uo=4&at=10l6SU
Website: http://www.facebook.com/
Website: http://www.blackboard.com/
Free iPad app: https://itunes.apple.com/us/app/blackboard-mobile-learn/id376413870?mt=8&uo=4&at=10l6SU
Free iPhone app: https://itunes.apple.com/us/app/blackboard-mobile-learn/id376413870?mt=8&uo=4&at=10l6SU
Free Android Phone app: https://play.google.com/store/apps/details?id=com.blackboard.android
Free Android Phone app: https://play.google.com/store/apps/details?id=com.lightspeedsystems.mbc
Free iPad app: http://itunes.apple.com/us/app/my-big-campus/id464196976?mt=8&uo=4&at=10l6SU
Free iPhone app: http://itunes.apple.com/us/app/my-big-campus/id464196976?mt=8&uo=4&at=10l6SU
Website: http://www.mybigcampus.com/