Twitter and American Express: e-commerce sales on Twitter

American_ExpressTwitter and American Express have concluded a partnership to allow users of the social network Twitter to buy goods with short messages. American Express cardholders, who tied their cards with accounts on Twitter, can post a tweet with a special hashtag to implement the purchase of selected items, including gift cards American Express, tablet Kindle Fire at Amazon.com and jewelry from Donna Karan . The service will be introduced in a few days.