Can Tech directly solve it though ? My instinct tell me that perhaps there are some server hosting companies that tolerate such materials who need to be blocked.<p>You will need to somehow flag users and kick sites out of the index. What will happen as well I assume is that there will be niche forums and as they are tricky it will go on deep.<p>Any ideas what can be done ?<p>I m not an expert on fighting crime online. cheers