A search of Amazon.ca for “Where Did the Towers Go Judy Wood” turns up no search results as of November 22, 2012.
The book is available on Amazon.com, however.
Is this really a case of too little interest in the book among Canadians? If so, why does Canada’s largest bookseller, Indigo Books and Music, have a page for it?
Interestingly, “where did the towers go” turns up in the auto-populated search box as you start typing, but no entry exists for the book.
Could this all have something to do with the 2011 9/11 Toronto Hearings or the 2012 9/11 Vancouver Hearings?

I personally spoke to Doug Hagmann about Dr. Judy Wood being on his show (Hagmann and Hagmann) tonight (02/21/2013). Has everybody sold out??
[...] 7) Why is Amazon Canada not selling Dr. Judy Wood’s book, Where Did the Towers Go? [...]