http://gigaom.com/2013/10/05/why-arent-marketers-talking-about-the-twitter-ipo/
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US residents can opt out of "sales" of personal data.
Matt Compton, CEO of ShopIgniter, divorces the product from the process; forecasting the emergence of a more agile and innovative Twitter despite trepidation over its IPO.
http://gigaom.com/2013/10/05/why-arent-marketers-talking-about-the-twitter-ipo/