Here are some links to other Fightermaker sites on the web. Many of them have or are forums available to post questions or just get involved with the community.
FIGHTER MAKER HQ - Redefining Fighting: The site that got me back into the community. I didn't even know there were still people working with Fightermaker until I found this site. They offer a large amount of content featuring characters and backdrops, as well as a community forum. They've currently recovered from their technical issues and have joined up with the Silverfirebird Network! Head over and see what they have to offer!
FIGHTERS GX: Probably the largest Fightermaker resource site I know of. It has all of the content of FMHQ and more. They offer Games, Characters and other downloads, as well as a large community forum. (Link currently broken)
CODENAME: Fightermaker: Another good website offering a good amount of content. They've got characters, stages and games, and they even offer various services to Fightermaker users, such as demo creation, and game hosting.
Fighter Maker Utopia Tachi20's website. It has some content already up and it's home to the upcoming FM2nd/2002 project "Fatal Fury - King of Southtown", which is coming along nicely!