Do you know what NCOA stands for? It stands for National Change of Address. There is a website named TowerData that specializes in email and data solutions. They work with business and the public to help keep them in touch either by using the postal service or by using the internet and email. They understand people move each year and with the NCOA service they are providing they do their best in keeping business in touch with their customers. They have much more information on their website if this type of service is right for your business.