MarketAbility  
   Colorado book marketing company. Site has advice and information about marketing, distribution and PR.
   http://www.marketability.com/

Book Marketing Update  
   Marketing and promotion tips for authors and publishers.
   http://bookmarket.com/

NetRead's JacketCaster  
   Maintain current book information with the major wholesalers and online retailers.
   http://netread.com/jacketcaster/

Booknote  
   Marketing and book promotion for authors, single-titles, literary agents and publishers featuring targeted internet book marketing.
   http://www.booknote.com

Top 5 Best  
   Weekly updates of the best selling books.
   http://www.top5s.com/books.htm

Mockfear Enterprises SP  
   Business promotion of author materials and sales of manuscript.
   http://www.mockfear.com/

Twin Peaks Press  
   A marketing, PR and mailing list service catering to small businesses, publishers and audio/video producers.
   http://home.pacifier.com/~twinpeak/

Northern California Book Publicity and Marketing Association  
   Covers the aims of the association: education about the publicity, promotion, marketing and distribution of books throughout Northern California. Features a job bank for the industry.
   http://www.ncbpma.com

Lewis & Clark Research  
   Market research for the magazine and newsletter publishing industry.
   http://www.readersurvey.com/