TED (always love their videos--their app in iPad is great) now allows connecting YouTube videos with content for lessons. Lots of potential here...check it out.
Notability is an iPad app for note taking that allows collaborative (or not) notetaking with sharing options. Plus it works with Dropbox (cloud storage)
This App allows users to annotate PDF files. One can insert comments, questions, signatures, etc. Teachers are using it for running records when the leveled texts are put in PDF form.
Free cloud storage with Copy--works similar to Dropbox -- free and 15 GB of storage. (I use Dropbox and see no need to change, but this has an app that you can install on any device and, apparently, is not in conflict with Dropbox). Might be worth a book.
Blog about tools for drawing diagrams--free ones as well as paid ones. I particularly like (Inspiration--$ because you can hyperlink and save as a Word document with hyperlinks too--as well as bubbl.us--free.
Pogue is someone to watch. I use many Google Apps and this might replace my use of Skype. Check it out. Internationally, I get 'bumped' from Skype easily, so I am curious about this Google application.
This NY Times article was shared with me by Connie Frazer, who is Director of Sage Online. Thanks, Connie!
gClassFolders (google shared public template) looks like it has a lot of potential for English teachers. Student has to 'drag' the dropbox folder to their desktop, but they can put work 'view' and 'edit' in for the teacher as well as final copy. Check it out--click on the video to see a quick, clear demonstration.