- Nisei Baseball Research Project, http://www.NiseiBaseball.com
- Negro Leagues Baseball Museum, https://nlbm.com
- Society for American Baseball Research, http://www.SABR.org
- The Baseball Reliquary, http://www.BaseballReliquary.org
- Japanese Baseball Hall of Fame, http://english.baseball-museum.or.jp
- National Baseball Hall of Fame, http://www.BaseballHall.org
- Prestige Collectibles, https://PrestigeCollectiblesAuction.com
- Densho, http://www.Densho.org
- Japanese American Citizens League, http://www.JACL.org
Social media
- Asian Baseball Community, https://www.facebook.com/asianbaseball
- Nisei Baseball Research Project, https://www.facebook.com/niseibaseball
- Fellowship of Buddhist Athletes, https://www.facebook.com/BuddhistAthletes
Blogs
- Gary Ashwill (Multi-ethnic Baseball) http://agatetype.typepad.com
- Ronald Auther (West Coast Negro Leagues) https://shadowballexpress.wordpress.com
- Patrick Bourgo (Korean Baseball) http://myso-calledresearch.blogspot.kr
- Gary Cieradkowski (Multi-ethnic baseball) http://infinitecardset.blogspot.com
- Rob Fitts (Japanese & Nikkei Baseball) http://blog.robfitts.com
- Daigo Fujiwara (Japanese Baseball) http://blog.japaneseballplayers.com
- Patrick Gordon (Japanese Baseball) http://blog.philadelphiabaseballreview.com