Here are some links to sites containing various forums & information on primitive predatory fishes:

      Online predatory fishes forum specializing in oddball fishes; the site also features comprehensive information on all other freshwater and marine fishes as  well as an expert, friendly and professional staff.

Alligartor.com

Garfishing.com

       Information and great photos of several gar species; emphasis on sportfishing for gar.

"Gar Nuts"

    Website with some very impressive photos of various gar species in extensive home aquaria setups.

       Site dedicated to researching & breeding the Australian lungfish; contains information to order your own specimen as well!

Biology of Fishes Lab

Website through The University of Michigan containing information on the identification of various native fishes as well as several exotic families.

 

Aquarium society through the Museums Division of the University of Michigan; monthly meetings of local aquarists as well as many other activities.  Attendance is FREE!