>the other hand there are many pages which might use a single word in a >correct contex which is acceptable in this society, yet the page gets >blocked.
Like a harmless astronomy site that gets blocked because it talks about stars visible to the _naked_ eye. A good content filter might give weightings to words, in relation to proximity to other words. eg "naked eye" and "naked flame" are scientific web pages, while "naked butts" mite be filtered out. I've often thought about writing such a filter. For pictures, the image could be analysed for "skin coloured" pixels maybe. Could be tricky - won't work 100% but worth a shot. Yuri
