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"Links that link to: any page on subdomain" The remaining links point to another subdomain. Try selecting: "Any page on this root domain" and see what you get

You can add 5 campaign in SEOmoz for tracking your competitors, but: If you change competitors, you lose any historical data for any (old) competitor you replace you can't add more competitors to a campaign once an initial limit has been set, so I couldn't go from 3 to 5 competitors in a campaign I updated recently