I was reading through "best web programming books" articles, and I saw the book Content Strategy for the Web by Kristina Halvorson.
So, what is a similar (or better, please specify if it's better) book? Or maybe even a website/article...
Not related to content strategy so much as how to write for the web, but Letting Go of the Words: Writing Web Content that Works by Janice Redish (forward by Steve Krug) is pretty highly recommended. I haven't read the book you mentioned, so I dunno if it's better.
And I personally haven't read these, but a quick search on Amazon came up with these 2 titles with very high user review ratings: