Google +1′s are like votes signaling popularity of your website. Each time your site receives a Plus One your site is indexed/re-indexed. The more of these you have the better chance your site has of being indexed for your targeted keywords. PlusOnes also boost the CTR of your Adwords ads. If you are serious about SEO then you know the value of social signals. You can Buy Google +1′s and split them up across multiple websites
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