When it comes to link building, we've been through the mill just like you (likely) have too. We've joined many link networks only to find they have zero quality control. The blogs the articles get posted on have little authority with the search engines, and also so much JUNK gets posted onto them - sometimes 30 articles per day meaning YOUR article stays on the home page of each blog for perhaps no more than a few hours - USELESS! For more details, go here : http://www.wejustlink.com