Twitter and Amex team up to allow purchases

February 12, 2013 12:50:55 PM PST
Twitter is teaming up with American Express to become a shopping site. Users of the San Francisco based messaging service are now able to purchase products using an American Express card.

Amex members who sign up will be able to buy products by tweeting a special hashtag. American Express will tweet back a message -- giving you 15 minutes to confirm you want to make your purchase. The move is part of an effort by Twitter to expand its revenue beyond advertising.