* Various VST plug-ins work on the Linux platform using FST or dssi-VST, or compiling plug-ins whose source code is available. Help with this, as well as some precompiled VST's can be found here. The source code of many VST's can be found here and here. The source code for many more are also freely available, but they have to be found one at a time on the individual author's sites. Now there's good idea for a site - aggregate all those pages into one! :-)
This topic will be expanded at a further date.