Founded in 1978 as a direct mail archive, today Who's Mailing What! (WMW!) is the world's most complete online library of multichannel direct mail and email campaigns. WMW! provides information on hundreds of thousands of direct mail packages and promotional emails from across the U.S. markets. WMW! houses campaigns for more than 80 industry categories including: credit cards, fundraising, insurance, telecom, catalogs, travel, automotive and more. To see the complete list of WMW! categories, click here.

• Learn about all the ways Who's Mailing What! can help you.
• Check out all the great direct marketing articles on the website