I have noticed that in the nineties there was a boost of activity on the Thirring and Nambu-Jona-Lasinio models and bosonization, which I find highly interesting. I have already got me a huge (virtual) pile of papers to wade through. But probably it will save me a lot of wasted time if somebody here could answer the following questions: * What stopped interest in these models ? * Are they too simple ? * Have they got serious flaws ? * Is bosonization related to supersymmetry ?