i own 12 domains all very similar (eg: investor, investors, investing with extensions .com, .org, .net, .info) all of these sites have the exact same content based around investing, would it be more affective to put different content on all the sites such as basing each one around different forms of investing and then back linking them all to each other. my second question is, these 12 domains were all purchased through go daddy my web space is at 1and1 so i mask my default 1and1 domain which is something along the lines of 1234567.onlinehosting.us would this domain masking affect my "per click revenue" thanks for your help
