Thank you all for your ideas, opinions and advices.
I have spent some time during these days reading orthodox opinions on alternative theories (I hate the words "fringe archeology") and I admit that it has been an exciting exercise of avaluation and re-thinking some of my preconceptions about both sides. However... how difficult it's to swim between the two shores!! Sometimes I think is close to impossible to keep a skeptical vision and a neutral point of view. Somehow you are forced to choose between black and white, when your mind says that in fact there is a large scale of greys between them...
Well, I recommend you to visit this web page of a British archaeologist, Keith Fitzpatrick-Matthews (who also manages the Bad Archaeology site), which is very interesting in some aspects but disappointing in others. I have chosen this satirical article to show how silly can be some arguments against "the fringe community". I would never have such a satirical attitude towards Colin Renfrew, Mark Lehner, Lewis Binford, etc. because it does not help to create a serious debate -but perhaps the scholars don't want to start a debate at all.
Here's the link:
Veritas ipsam viam inveniet