| Direct Marketing Association |
| The DMA gives its members the tools and services to do their jobs better. Whether it is customized information, access to cutting edge research, legislative representation or education, the DMA is dedicated to helping members increase effectiveness. |
| |
| Los Angeles Direct Marketing Association |
| The Los Angeles Direct Marketing Association (LADMA) is the only organized community of direct marketing professionals in the Los Angeles area. |
| |
| Mailing & Fulfillment Service Association |
| For over 75 years, MFSA has been the premier national trade association for the mailing services industry. |
| |
| United States Postal Service |
| This is the official site for the United States Postal Service. |
| |
