I must admit I learn a lot of things from BHW. But when i open any threads about seo , always can find a lot SEO "guru" telling people false information. some example : 1.sitewide are bad, 2.you have to mix do-follow and nofollow 3.link velocity ,don't building links too fast 4.too much irrelevant links will hurt your sites. Are you sure you really know seo? Well ,When you telling other people these "truth" ,did you do any experimental verification these theory? No ,maybe you just heard from other guru.