Whether on the Web or in the brick-and-mortar world,business owners devote a greatdeal of time to reaching new customers.Butwhat about keeping the customers you alreadyhave?That’s just as important on the Internetas it is in the “real” world.Thanks to emergingonline technologies,staying in touch with yourestablished customers-and building loyaltyand repeat business-is often easier onlinethan on land.Here are six ideas to help youbuild customer loyalty on the Web.