Consumer-generated reviews, buying tips and advice, ratings, price information, and searchable in a variety of ways from price to product type.
Reviews of mountain bikes and components.
A shopping site which also mixes in consumer information, including decision tips, product types available, and features to consider.
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.
How-to centers that give consumer information, shopping advice, as well as how to do things such as projects.