Baseball Hall of Fame

• THE official baseball site.

Baseball-Reference

• Stats for every major league player, manager, and team

Baseball Almanac

• Comprehensive baseball site

Heritage Auctions

• Several auctions throughout the year as well as monthly auctions

Huggins & Scott

• Several auctions a year.  Check out the site

Goldin Auctions

• The leading auction house for modern and unique collectibles

Goodwin & Co.

• Amazing auction lists.  Check out the site

Lelands

Robert Edwards Auctions

• Two monstrous auctions a year

SCP Auctions

Sterling Sports Auctions

• Monthly auctions

Net54 Baseball

• Largest forum on vintage sports cards, amazing members, I always am on it.

T206Collector.com

• The single GREATEST collection of signed T206's in existence, as well as a ton of other signed pre-war cards.  Exceptionally knowledgable on signed T206's.

T206.org

• The greatest database for all you need to know about "The Monster"

BBHOFRC.COM

• An amazing personal collection of Baseball Hall of Fame rookie cards, or the earliest known images of Hall of Fame members