Some of my Amazon auto blogs are experiencing drop in traffic , same pattern, traffic is usually climbing by each month then after 3 to 6 months , traffic dropped significantly. Death rate of my Amazon blogs is quite high , 25 % after 3-6 months since creation date. None of those dead blogs ever got deindexed by Google . I can still see my sites using site:www and info:www What am I doing wrong? All of my blogs were built using same method, same posting frequency ,same plug-ins, same everything. 75 % of my blogs are thriving but the rest are dead, dead as in no traffic or very little traffic. Any of you here experiencing the same thing? Is there a way to solve this issue?