Techcrunch posted this video interview in which Twitter product manager Shiva Rajaraman discusses how Twitter using its @earlybird couponing channel can work with brands to offer perishable deals on the fly (something we discussed last week): At first blush, Twitter faces three hurdles: @earlybird is positioned as another Groupon/LivingSocial/BuywithMe/etc., and couponing is becoming commoditized. So [...]
