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Advertisers remain wary to branch out on Twitter
This cautiousness is reflected in the relatively small scale of Twitter's advertising business. While Twitter's ad revenue is growing at an exponential rate, its $269.4m in sales last year is dwarfed by Google's $32.7bn, and Facebook's $4.3bn, in 2012 ...
Twitter and Nielsen begin tracking tweets about TV this week
Twitter launches Nielsen TV ratings system to track TV-related tweets
Twitter IPO: Valuations Hover Between $15bn to $40bn Post Listing