Measuring how much is a tweet worth for a kickstarter campaign(klear.com)
klear.com
Measuring how much is a tweet worth for a kickstarter campaign
http://klear.com/blog/how-much-is-a-tweet-worth-for-a-kickstarter-campaign/
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http://klear.com/blog/how-much-is-a-tweet-worth-for-a-kickstarter-campaign/
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