Citation Hunt

You can customize Citation Hunt by providing a list of articles. This gives you a link that you can share with others so they browse Citation Hunt limited to the articles you provided.

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Because of the large amount of spam posted to user-editable webpages, Google proposed a "nofollow" tag that could be embedded with links. A link-based search engine, such as Google's PageRank system, will not use the link to increase the score of the linked website if the link carries a nofollow tag. This ensures that spamming links to user-editable websites will not raise the sites ranking with search engines. Nofollow is used by several websites, such as Wordpress, Blogger and Wikipedia.[citation needed]