This infographic by Dot Com Infoway focuses the life of an SEO, before , after and beyond Penguin 2.1. It just juxtaposes the current SEO practices against the practices used in the pre-Penguin world. It showcases the drastically different SEO tactics that are being used now in key aspects of an SEO campaign such as link building, the anchor text profile, link relevance, content marketing, social media marketing, and customer relationship management.
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