Overview: I have 2 main sites in the same niche (i.e. plumbers los angeles) that sit on top first page, then other 12 sites in same service niche, but slightly different area (i.e. plumbers long beach, plumbers santa monica, etc). Each of the "other" sites has 1 link to one of my two main sites. I am creating 100s of 2.0s with 5+ post, 500 words. Would it be ok if each post sent 1 link to each of my sites, and every one of my blogs had, for instance, a post w/ link to one of my main sites, and 4 posts w/ link to my other sites? Hope that was clear. Seeing if should I leave the "other" sites out of my 2.0s, or include them? Hate writing 500 words of fluff with no links in it.