Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Unique, valuable, high-quality reference; outstanding value.

Offers over 2,500 annotated listings covering the business-related Web sites of 176 countries. Sites are selected for richness of content and stability. All sites are in english. The book is indexed by website title, country and subject, and updated periodically. A unique, valuable, high-quality reference; outstanding value. Reviewed by Gerry Stern, founder of hrconsultant.com. and Stern & Associates.