Link-building Tips and Tools for Bloggers in a Post-Panda and Penguin World
ProBlogger
AUGUST 15, 2012
Later, social networks like Digg, Last.fm, and others were affected as well. Penguin, announced in April 2012, decreased search visibility of websites that participated in black-hat SEO, keyword stuffing, cloaking, link schemes , duplicate content, and other activities that violated Google Webmaster Guidelines. For example….
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