I finally added a feature to this blog that has been on the back burner for ages: a list of errata and other possible changes to my book ¿Por qué? 101 Questions about Spanish. I have been keeping this list in the event that Bloomsbury (or another publisher) ever puts out a second edition, and have just posted it as a new page on the blog. This is for the benefit of both readers and myself, as I hope readers will contact me with additions to the list. Hopefully most of these will be suggestions rather than further errata!
The most important errata concern factual errors. Others point out typographical errors and problems with references.
The page is organized by question number.
Have at it!