[Zope] Examples please

Hi. I'm just a newbie to Zope, but I really like it so far. Obvious drawbacks are lack of complete documentation. I've installed the KM|netNews product and really like it. It seems to have all of the neatest features of Zope - Zclasses, factories, product specification, Zcatalog, etc. Perhaps someone out there who is familiar with this product would be willing to create a tutorial explaining how this product "works"? Even a diagram of how the various parts interact would really help me (and others too) get a better understanding of the power of Zope. Anyone got a little free time???? Thanks in advance, Liz Pelletier