When using a Private Blog Network how strict do you need to be? For Example.. Should the expired domain name look presentable and match your niche? Should the content you put on the expired domain look the same or similar to the way back machines or can you take a vague domain an turn it into something that is similar to your niche? What type of PA/DA do you need? (it seems like 25+ DA is near impossible to find) How many sites do you need on your network to make a difference? (edit) more questions Would you buy a domain that previously had ads on it? What if you could tell an affiliate marketer owned it? Would you buy it as long as it didn't have spammy backlinks? What type of backlink profile do you search for(other than spam)? Is something that has most of it's links from one site bad? Do you skip over sites that have 1000's of backlinks?