Griffin Technology. The make iPod accessories and such. Wait, I am not sure the President would want to be on Twitter at all. However, Citibank runs ads and ma

Griffin Technology. The make iPod accessories and such. Wait, I am not sure the President would want to be on Twitter at all. However, Citibank runs ads and marketing campaigns, they have customer service, they run PR campaigns. Twitter is a tool that those departments can use to actively listen and respond to their customers.