- APRA; International Association of Professional Researchers for Advancement.
- CARA; California chapter of APRA.
- Helen Brown Group; provides a very useful collection of rich lists by region.
- Internet Prospector; began as a regular online posting to PRSPCT-L in 1994, then launched its own website in 1996.
- NetSource@USC; great source for entertainment-industry links.
- Northwestern University Research Bookmarks; prospect research bookmarks, maintained by Al Gabor.
- Portico; web resources for advancement professionals.
- PRSPCT-L is a listserv for prospect researchers, founded in 1993 by Joseph Boeke when he worked at UC Irvine, and later housed at Bucknell.
- SupportingAdvancement.net Research Page; in-depth list of research resources.
- Tax Assessor Database; links to online assessor office websites, as well as multipliers for estimating market value of real properties; maintained by Christina Pulawski.
- University of Vermont Prospect Research and Reference Tools; cited as a "virtual Swiss army-knife site" by Case Currents.
