1. A computer-implemented method for fulfilling stationery products by a network-based personalized stationery system, comprising: providing a user with a set of stationery templates by a network-based personalized stationery system comprising one or more computer servers; receiving, by the network-based personalized stationery system, a selection of one of the stationery templates from the user; using the one of the stationery templates selected by the user to generate a personalized stationery design for a stationery product having a stationery product size and a paper type; storing types of stationery products, stationery product sizes, paper types, and a printing quota value in association with each of a plurality of fulfillment sites; selecting, among the plurality of fulfillment sites, a set of eligible fulfillment sites based on the types of stationery products, the stationery product sizes, and the paper types associated with each of the plurality of fulfillment sites, wherein the set of eligible fulfillment sites are capable of printing and finishing the stationery product based on the stationery design; and selecting, by the network-based personalized stationery system, an eligible fulfillment site in the set of eligible fulfillment sites to produce the stationery product based on the printing quota values of the respective eligible fulfillment sites.
5. The computer-implemented method of claim 1 , wherein the stationery product sizes comprise 5″×7″, 3.5″×5″, or 4″×9″ for flat cards or folded cards.