[LAU] Plugin confused

I recently was writing up an article for my site about my experiences with VST capabilities in Linux, mostly focused on the use of FST and learned that there was such thing as Linux Native VST format. I was about to begin compiling an addendum to my article but I discovered more. I already knew about LADSPA and knew a little about DSSI, but in the process I learned a little about LV2 as well. I'm trying to find a source that can compare all these plugin formats side by side and cannot seem to find one, so I might have to start compiling the project myself, but I figured I'd ask the LAU list first. Why do we have all these different plugin formats, and what are the differences? Are there any more worth mention that I haven't found yet? -- Christopher "Chip" Van Dan http://www.van-dan.com p.s. for those of you that don't know my site is aimed at beginners and I just merely share my experiences without getting extremely technical