and for the first day I harvested url's from google continously for 7-8 hours...and after 2 hrs of rest i started harvesting from yahoo continously for 27 hours....and after that i used google for pagerank check continously for 4 hours! Now the yahoo harvester which was ultra fast, doesn't even work... It harvests < 1 urls/second? Has yahoo blocked me? But i used proxies!!! When will the block be removed? What to do now? Thanks.