The Taproot Foundation connects nonprofits and social change organizations with passionate, skilled volunteers who share their expertise pro bono. Through their programs, business professionals deliver marketing, strategy, HR, and IT solutions that organizations need to achieve their missions. On its web site, the Foundation offers information on succeeding with pro bono consultants.

The Taproot Foundation published a book, Powered by Pro Bono, that provides an extensive discussion of how to succeed with pro bono consultants. Many of the topics are relevant to paid consulting relationships as well.

Strengthening Nonprofits offers an extensive and free guide to the process of working with consultants.

Catchafire matches professionals who want to volunteer their skills with nonprofits and social enterprises that need their help. Catchafire matches professionals and organizations based on a variety of characteristics including skills, interests, and availability.