I am looking at setting up a private blog network. The obvious route to go with this seems to be to buy expired or dropped domains. The problem is by the looks of things every man and his dog look to be doing this now so the domains are going to be harder and harder to find, especially one related to your niche.
Are people creating blog networks with new domains? Ie register a new domain and backlink that, either by using software or manually. I can't imagine a piece of software would be able to get a page any higher than a PR3 alone but a blog network of lots of PR3 sites would still be pretty handy wouldn't it?
What are people's thoughts?