There was quite a bit of interest in the upcoming free Error Handling ebook during the PowerScripting Podcast on Thursday. It's still in a very early draft form, but I've posted it to the GitHub repository for anyone who wants to brave the unedited waters and get a preview of the content.
Feedback is welcome, particularly on the technical content. Don't worry about the presentation / organization so much, as those are likely to change once we go through a review and edit process anyway. You can post comments on GitHub, or contact me directly at firstname.lastname@example.org.