An effective link building strategy would be to get as many natural backlinks to your website as possible. You can rely on article markrting but upto a limited extent. Publishing unique articles that give enough value to the user is a better link that getting hundreds of crappy backlinks all having the same content and anchor text.
Also See:-
Importance of Backlinks in Seo
How to Create Backlinks That Google Loves
How to Rank in Google
Infographics- An Easier Way to Get Backlinks
Top Ways to Get Natural Backlinks
Link Baiting
Link Building in 2013
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