How to Recognize an Academic Spam Publisher

I think this is self-evident to the human reader. From an email I got:

Your interesting published article “Erratum to: The single-vendor commercial open source business model” drives me to call for new papers and honorary reviewer, on behalf of Computer Communication & Collaboration, which is an English quarterly journal in Canada.

Oh well… And I’m still annoyed about Springer changing my paper title on their own will.