2010
Search Engine Optimization: Is Social Sharing the Next Link Building?
From a search engine’s perspective, the theory here is that most likely you are sharing something with your friends because you like it. You like that URL enough that you want to share it with everyone who is following you. That is now a link.
2008
How Would You Build Links If Google Did Not Exist?
Loren Baker looks into the practice of successful link building for Google, by pretending that Google and PageRank were never invented, and linking is done to attract interest and traffic.
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