- Supporting Fundraising Research Links – a pretty exhaustive collection of prospect research and prospect managment links.
- Portico – from the University of Virginia.
- The Aspire Group’s Fast Favorites
- David Lamb’s Research Page – one of the originals!
- Internet Prospector – no longer updated, this was another one of the original prospect research sites.
- InFomentation at Pinboard – my own personal collection
- Supporting Fundraising – a good springboard for professional fundraising resources
- National Center for Charitable Statistics – a collection of data on nonprofit organizations and their activities
- Giving USA – publisher of the annual Spotlight report and the Annual Report on Philanthropy in the US.