A more thorough explanation:

The LII is grateful for the support of the following sponsors and friends:

• CAUCE North America
• MAAWG
• Constant Contact®, Inc.
• Word to the Wise

CAUCE North America is an all-volunteer consumer advocacy organization that defends the interests of the average Internet user. They encourage the creation and adoption of anti-spam laws and have a combined Board with a cumulative century of experience in the field of Internet advocacy.

MAAWG is an organization that represents more than one billion mailboxes from some of the largest network operators worldwide. They work against spam, viruses, denial-of-service attacks, and other online exploitation. They address messaging abuse holistically by systematically engaging all aspects of the problem, including technology, industry collaboration, and public policy.

Constant Contact®, Inc. helps small businesses, associations, and nonprofits connect with their customers, clients, and members. They provide an easy and affordable way to build successful, lasting customer relationships.

Word to the Wise's business is email. They provide software to allow ISPs and ESPs to manage incoming complaints and services to help ESPs and marketers to deliver wanted email. They are privately owned, with principal offices in Palo Alto, CA.

These examples illustrate how the Inbox Project Sponsors support the LII and its mission to provide free and open access to legal information.