A small percentage of users will receive tweets from Twitter test partners Monday featuring a "buy" button that lets them make purchases or donate money. Initial partners include the musical groups Soundgarden and Panic! At The Disco, retailers Home Depot and Burberry, and nonprofits The Nature Conservancy and GLAAD.
After clicking the buy button, users will be prompted to enter shipping and payment information. Then the order will be sent to the merchant for delivery.
Users' personal information will be encrypted. And their credit card details won't be given to sellers without permission.