BoomBats, Inc.  
   Dedicated to the collection and identification of game used baseball bats.
   http://www.boombats.com

Eagle Sports Autographs & Memorabilia  
   Authentic sports, celebrity, and presidential autographs also private and public signing sessions.
   http://www.eagle-sports.com

Sports Card Depot  
   An interactive forum allowing visitors to post sports related collectible ads and search its database.
   http://carddepot.com

Collecting Baseball Memorabilia  
   Article from the archive of Southeastern Antiquing and Collecting magazine.
   http://www.go-star.com/antiquing/baseball.htm

The Baseball Museum Collection  
   Pictures the memorabilia collection of Seth Swirsky, author of Every Pitcher Tells A Story and Baseball Letters.
   http://www.sethsroom.com/memorabilia.htm

T206 Museum  
   Provides commentary, news, discussion, checklists, and pricing information on T-206 baseball cards.
   http://www.t206museum.com

Vintage Rare Backs  
   Provides information about rare tobacco card backs.
   http://members.shaw.ca/bluemanitou