Anyone can explain certain rules which are follow in doing link building?

[handmaderug]

Anyone can explain certain rules which are follow in doing link building?

[allen025]

There are many specific rules to define the quality of links. I will look at following factors before submission :
-Quality of back link(PR, PA, DA must be good)
-Relevancy of the content between 2 sites
-Proper use of anchor text.
-Avoid site-wide links
-Avoid links from low-quality sites.