I found it really interesting- it is quite out there about the risks and controversy regarding low back pain. It's a very biased website, against low back surgery, but it also does have some interesting statistics and information, and show some very good graphics indicating why anyone considering lumbar fusion should consider it carefully (bummer for those of us who had our fusions done for us).
Anyway, if you don't want to read an anti-fusion site, stay away. If you'd like to see the other side of the argument, check it out. (and I did look, and couldn't see that they were selling anything, but I didn't check the entire site). Personally, I don't always mind reading biased sites as long as I understand the biases.http://www.burtonreport.com/infspine/SurgStabilFusionForBackPain.htm