I registered an EMD for my primary keyword, I have let it build up 6 months of age so far. I have now registered 30 EMDs (a mix of .com, .net and .org) over 15 related keywords. I have my own private blog network of 50 sites (PR2 to 4, age from 2 years to 14 years,OBL of around 6) that I intend to use to power the 30 domain. On each of the domains I'll make a mini site with unique content and my standard webform to capture details. I'll also have a backlink pointing at my main site. After I registered the domains I had thoughts that it may be a bit of a silly idea as instead of pointing 50 aged domains at my site, I'll now be pointing 30 new domains. The arguement to counter that is that I'll have 30 domains all relevant to my niche, that will gain good PR from the blog network. On top of that I'm sure to dominate the SERPS for those 15 other keywords and that will bring good traffic and conversions. I'm looking for advice or opinions? Thanks in advance!