I have one website with Page Rank 5 and backlink count in Yahoo site explorer is around 63000. It is a software company's website and having blog with regular updating content also. I have said to do only ONE WAY and FREE link building with PR 5+ sites.
I am doing
Social Media Optimization (Facebook, Twitter, LinkedIn)
So any body knows any other way to do link building excluding above mentioned methods which will be quality link building.
Also if someone have lists of PR 5+ websites (Directory and Business Listing) then please share with me.
Thanks in advance.