The following websites were referenced in the various sections of this Guide:

Careers in Medicine—https://www.aamc.org/cim/

Residency Explorer- https://www.residencyexplorer.org/ 

ERAS—https://www.aamc.org/services/eras/

Federation of State Medical Boards—www.fsmb.org/

FREIDA—http://www.ama-assn.org/

NBME—http://www.nbme.org/

NRMP—http://www.nrmp.org/the-match-app/

PRISM—http://www.nrmp.org/the-match-app/ 

Prometric— https://www.prometric.com/en-us/clients/usmle/Pages/landing.aspx

San Francisco Match—www.sfmatch.org/

Urology Match—http://urologymatch.com/

USMLE—www.usmle.org/

Explaining the Algorithim-  The NRMP website offers a short video and other resources to explain how the match works.  https://www.youtube.com/watch?v=kvgfgGmemdA 

Interesting Podcast about the guy that developed the algorithim and also the system for organ donor matching!  https://freakonomics.com/podcast/make-me-a-match/

Want More Data?  The NRMP publishes match data each year with detailed graphs and reports.  NRMP Data