In order to be listed a site must clearly provide content that is useful to the consumer, and not merely be a collection of links/affiliated links to different vendors.

Collections of affiliated links that are submitted to this category will NOT be listed in the directory.
See overall ODP submission guidelines which clearly state such sites are not eligible for listing.

Examples of Listable Site Content

Physical Goods Content that allows price comparison via sorting mechanisms that display the cheapest price for a given product between a number of vendors.
Ideally the mechanisms will display cheapest total price (e.g. Lowest: Cost+Sales Tax+Shipping) first. Rather than merely a list of book prices.

Financial Products Content that helps consumers to compare the relative value for money of various financial products such as loans and credit cards.
Ideally sites should allow consumers to compare loans on 'effective APR' (i.e. the true implied interest rate when all balloon payments, deposits and fees are included as well as the regular payments) rather than 'nominal APR'. Credit card evaluation mechanisms should ideally allow consumers to sort on their own preferences. (Lowest standard APR, Lowest initial APR, Cashback rate etc)