Community SitesShining Force Gaiden I, II and CD Discussion Forum
One of the Shining Force Central message boards, with hundreds of active members.
GameFAQs Shining Force Sword of Hajya Board
Another great forum, not quite as active as the Shining Force Central boards, and not as many features, but a great community nonetheless!
Shining Force Penpal List
A very nice idea, and while the page isn't very "shiny", there are certainly quite a few people to contact!