The following links may be useful. Some I use, others are simply listed for interest.
Editorial and proofing: preciseproofing.com
Press releases: ereleases.com
Association of American Publishers: publishers.org
UK books: thebookseller.com
Self-publising in business: preciseproofing.com/business/business_promotion
A great resource for all things typographic and much else: thetypestudio.com, myfonts.com & fontshop.com
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