The glitzy Web sites got all the attention. But dot-com success turned more on who had the best logistics.MANUFACTURING
Web-enabled supply chains and intranets are important, but ultimately a manufacturer lives or dies on the quality of its goods.TRAVEL
Online travel sites are popular, but the ultimate constraint on travel is the physical capacity of the air and road systems.POWER
Online energy exchanges get the publicity, but power generation and transmission capabilities will have the bigger economic impact.