mb - happens all the time
Yahoo still has some Google results on datacenters overseas - I havent been able to narrow down which countries yet - but Im working on it
pusher - in most cases it really doesnt seem to help much - If you do a "directory" search for "sex" or "porn" Im in the top 10 - if you do a "web" search I wont come up at all - actually the first 20 listings for those words as well as "free sex" and "free porn" etc. have been hand edited on the web search results to stay the same and theyve been that way for months with no changes during Yahoo updates that have occured since they dropped google.