So I've recently started getting into scraping web 2.0 and re-registering them thanks to a couple guides posted here (thanks by the way). I was wondering what are some stats you typically look before adding these to your network? Right now I'm finding mostly Tumblr, Weebly, and Blog accounts in my scrapes. For example I usually sort them by page rank and then check for page authority. I have come across a couple Tumblr accounts with high PR (2-3) but 0 page authority, does that mean they're no good? Also, do you guys even check for trust flow? Or is that not too relevant when it comes to Web 2.0s? Thanks in advance for any answers and sorry for the noob questions, scraping for these myself sure beats paying for them.