How to share to Twitter, Facebook, Google, etc. from an iBook

Question

I'm having a very hard time creating a page at the end of my book where readers can share a quick blurb and my web site on various social media like Twitter, Facebook, and Google+.
My first approach was trying the same version of the Tweet button, the Like button, and the +1 button that you would add to a web site. These *don't* work out of the box because an iBooks HTML widget will not load external JavaScript or anything in an iframe. Has this been everyone else's experience? Am I doing something wrong?
Then, I made a widget that submitted predefined text and URLs to Twitter, Facebook, and Google+ through query parameters (which most of the share buttons do themselves behind the scenes). However, the implementation works but with severe drawbacks. You can log in to Twitter and tweet something but then you can't share on Facebook or Google+ due to the way iBooks HTML widgets handle URLs. Instead of opening URLs in Mobile Safari, like a plain iBooks Author link somewhere in the book text, the widget opens it's own browser window without any UI, location bar, history, or anything. Worse yet, there doesn't seem to be any way to navigate back or reset the widget to the original URL (main.html in Dashcode terms). This means whatever page you end up at after sharing something to say, Twitter, is the page the widget will always open from now on. To refresh the widget and share via another social service, you have to force quit and reopen the iBooks app.
You can see my code and try it out here: https://github.com/avk/iBooks-Social-Widget
The most important files are main.html and js/script.js
The widget.openURL(...) method, which can open links in Safari from a Dashboard widget, doesn't seem to be supported in iBooks HTML widgets.
All this seems wrong and unnecessarily difficult. Any help or ideas would be greatly appreciated!

Answer 1

Unless both ipads were set up with the same Apple ID, there really isn't.
This does depend on the app however. I don't read iBooks, but there are some e-reader apps like Kindle that may allow you to 'loan' the book to someone else. Or, using an e-reader app, the book can be 'checked out' of a library that supports downloaded books. You have an account, 'borrow' the file, use an e-reader app to read it, and have a certain time frame in which to finish reading.