I had an interesting observation the other day which I thought I would share and also to see whether anyone here has any thoughts.... I have around 46 micro niche websites spread across two distinct hosting companies...I keep a track of my adsense earnings (religiously!) and noticed the other night that my best performing ($'s) sites are located under one of the two servers. Now, the interesting thing is the second hosting is the usual Hostgator baby which is the one containing sites which are doing no where near as good as the other hosting. The weird thing is the hosting which is doing much better is a relatively unknown company which specialises in hosting porn material. I chose it when I started out because it was cheap and chearful.... Has anyone seen anything similar when it comes to the servers and companies your sites are located and what impact (if any) you have noticed or indeed whether my case is simply an anomaly?