Its good to have links from high page rank sites. But, its also good to have lots of links from average sites. When people say "high rage rank" - what does that actually mean? Is that PR, 4, 5, 6 or 7? If you have a PR of 1, then a PR 3 site is high. And, lets say that you get a link from a PR 4 site, and your site is only PR 2. In 2 or 3 years, your site is now PR 5 and that other site is still PR 4. So does that mean that the link now hurts you? I dont think so. There are a lot of factors involved. So dont put too much thought into "what is the PR of that site nd should I get a link from it?" Because PR changes every 3 or 4 months. You might get a link from a PR 4 site. And on the next update, that site could drop to PR 1. The goal is to build quality backlinks from as many sources as possible.
You should have a diversified backlink profile. If all of your backlinks are from PR3+ sites/pages it definitely doesn't look normal. If the links are natural, many of them would be from new pages without any PR.
If you want to make link building for your site beside PR getting links from related-site is very important, google gonna like it.
This is a very misunderstood concept, but even links from low PR sites like PR1 or PR 2 can give you a big boost if these sites themselves have a lot of backlinks from reputable sites. Googles rules for PR are very sketchy and I don't know anyone who knows everything there is to know on the subject but I have done a lot of research myself. Aim for links form high PR sites but ultimately you want relavent links from aged domains with many backlinks to these sites you are submitting to.
Any and every link is useful. But you should try to get high PR links most of the times. Low PR links are good as well because their PR might change in future.
Its useful to have more links, however, its very important that most of them are from high pr sites otherwise it wont do you much good
links links everywhere,get the links as much as you can,i think link dont hurt may it be from pr 2 or pr3
links can´t hurt you, but why bother if they are useless ? 1 quality link from a related trusted site is worth more than 100 crappy links, what you want to spend time on..is after you.
PR of links is really important specially if they related in your niche, if not, it also a counts but it is useless. It is better related niche links and has a PR.. And ofcourse also the link quantity.. That's it!