South Downs Online
- A visitor's guide to the area, with information about accommodation, attractions, events, activities, and transport access.
- http://www.visitsouthdowns.com/

South Downs Joint Committee
- An interim arrangement to face the conservation and development of the South Downs, pending a final decision on National Park status. Information about membership, activities, and contact details.
- http://www.southdowns.gov.uk/

South Downs Campaign
- A network of local, regional and national organisations campaigning to have the area designated as a National Park. Information about their activities, membership, development threats, and news.
- http://www.southdownscampaign.org.uk/