sugarrae - 5:06 am on Oct 10, 2006 (gmt 0)

>>>has 50 domains to make use of with the overall goal of benefiting one main site

And where are these 50 domains getting any power to send back to the main site? They'll need their own link popularity and trust to have any noticeable impact (on Google specifically) - which means good content and a lot of link dev - if you're going to put all that effort in, why not just put it into the main site instead of creating a network to boost the main site?