What you said makes sense Lee. Cross passing to same niche makes sense, so does cross passing into say smaller sites that might be created to serve as your own smaller "feed" sites.

Easiest to explain would be say I have 5-6 sites - totally non related niches. I build an erotica story site ... and let all have access to it as a 'bonus' site. Whether I update it or not, is optional.

Ian - I know EXACTLY the type sites you're talking about! I've even done reviews and have said, hey, you get these other 5 sites no matter which you join, so go sign up thru site C because you get em all for 10 bucks less!