If you owned 100 .coms in one niche market (general consumer with crossover to specialty electronics keywords) with some of the top premium generic domains available in that niche, what would you do with them all as far as development? Make one main site and forward the 99 others to it? Create 1 main site create network of 99 mini sites offering the new domain owners access to your network. Too $$$$ and needless. Not enough content to use that would be unique in all sites hence google issues. Lease out a number of these domains to top ranked similar niche websites so they can use them as sub domains to draw more traffic? What else to do??