Replaced prod template with advertising template

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As shown by the references, this is a notable topic. Every edition of the job mail has lots of ads for jobs that require Pastel expertise, it's been mentioned in books, and it gets taught in 3rd party courses by universities that are in no way affiliated with the company. As for whether the tone is correct, that's completely separate to the notability of the article and shouldn't be addressed by deletion. --Slashme (talk) 20:25, 9 March 2011 (UTC)Reply