Consumer Review: Internal Frame Backpacks - Consumer-generated product reviews, ratings, prices for brands and models. www.consumerreview.com/categories/showcategories.asp?cardsubcatid=272&ConsoleID=0&AlphaID=0&top=10
Epinions: Internal Frame Packs - Comprehensive. Consumer-generated reviews, buying tips and advice, ratings, price information, and searchable in a variety of ways from price to product type. www.epinions.com/otdr-Backpacks-All-Internal_Frame_Packs
MSN eShop: Internal Frame Backpacks - Comprehensive. A shopping site which also mixes in consumer information, including decision tips, product types available, and features to consider. eshop.msn.com/marketplace.asp?catId=260&pmpType=1&pcId=2102
