eBuying Guides: How to Buy Answering Machines

Concentrates on where to buy and shop for products, but also has staff-produced buying guides for over 200 products. Some of the guides are links to other buying guide sites. Accepts no payments for listings.
http://www.ebuyingguides.com/How/AnsMachine_H.htm

Epinions: Answering Machines

Consumer-generated reviews, buying tips and advice, ratings, price information, and searchable in a variety of ways from price to product type.
http://www.epinions.com/elec-Comm-Answering_Machines-All

ConsumerSearch: Answering Machines

Offering analysis of popular reviewers of products and services, and then recommends best buys and rankings based on reviewing the reviewers.
http://www.consumersearch.com/www/electronics/answering_machines/