Deletion of Z Corp.

Comment: Basic searches show that this passes  with flying colours: http://books.google.co.uk/books?um=1&num=100&q=%2B%22Z+Corporation%22+%2B3d&btnG=Search+Books Google Books, http://scholar.google.co.uk/scholar?um=1&num=100&q=%2B%22Z%20Corporation%22%20%2B3d&sa=N&tab=ps Google Scholar, http://news.google.co.uk/archivesearch?um=1&num=100&tab=pn&q=%2B%22Z+Corporation%22+%2B3d&ie=UTF-8 Google News Archive. I've added some of those sources to the article to go with the ones that were already there. There is plenty of factual, non-spammy content here, and anything thought to be overly promotional can easily be fixed by editing
Stance: keep
Cited policy: Wikipedia:Notability (WP:CORP)