MSN eShop: Construction Toys

A shopping site which also mixes in consumer information, including decision tips, product types available, and features to consider.
http://eshop.msn.com/marketplace.asp?catId=12&pmpType=1&pcId=1028

Epinions: Construction Toys

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/kifm-Toys-All-Construction_Toys