I've been doing a lot of reading on the forum and the idea of owning a Private Blog network is starting to sound enticing to me. I think based on the threads here I have a good idea of how to set them up (i.e., separate hosting, etc, etc). I have a couple more questions if someone more experienced could please answer for me if possible: 1. How many sites should i aim for? For example, if i used 100 purchased links pointing to a money site in the past and i was able to get to page 1.. how many private sites would i need in a private blog network to get a similar result? 2. If I was to hypothetically purchase 15 or so domains from auctions that have age but little to no PR, is this still valuable or as valuable in comparison to buying links from networks? If not, what would you suggest. Purchasing high PR domains starts to get expensive ? but what about PR 1 or PR 2 domains? Is that a decent start? 3. When you create your own blog network, do you tailor them specifically to your niche? or keep them a little more generic so they can be applied to multiple niches you may be running? Some further info on private blog networks would be much appreciated.