Researching the communities: here & here (allows side-by-side comparisons)
Information on Military Medical Training and the military match: here & here
Tiffany Sweeney's blog has great information about the residency match process - both MD & DO:
Information on AOA-approved residency programs available: here
Osteopathic Postdoctoral Training Institution (OPTI) sites: here
SOMA Clinical Clerkship Database (under construction)
Read Marbree's article.