We're doing some content marketing. I've heard that it is a good idea to target even PR1 and PR2 sites (small DA sites). I'm concerned about these sites disappearing after a few months, as we've found that losing a backlink can sting a bit and be worse than never having it. Though this isn't as big a deal any more.
Anyways, can somebody say when a PR1/PR2 backlink would be appropriate to go after? Some of them would be easy and if it's appropriate I'd like to include them. So far they would only pass our standards if they are
Above PR0
Look like a white hat, quality site from the outside
Have a clean backlink profile
Look like they're going to stick around
Successful Social Media Accounts a plus
What are you guys' criteria for including these sites? Do you gain value from them?