Link building has always been evolving, but the recent Panda and Penguin updates from Google took things to another level. Panda targeted low-quality, thin content masquerading as useful information, whereas Penguin targeted unnatural links. Here is a quick rundown of some of the tactics that are no longer work in the long-run and should be avoided, followed by the tactics you should now be focusing your efforts on.

https://www.seoprix.com/the-evolution-of-link-building/