Amazon and Twitter have teamed up to give you a new way to shop. If you’re scrolling through Twitter and see an Amazon product link to something you want to buy, you can now add it to your Amazon shopping cart by responding to the tweet with the hashtag #AmazonCart. To activate this feature, you’ll first need to link your Amazon and Twitter accounts, which you can do at amazon.com/AmazonCart. Any products you tweet a reply to will show up in your cart the next time you visit Amazon.com. You’ll also be notified via email and get a reply tweet from @MyAmazon to let you know the item was added to your cart. You save a mouse click – and Amazon gets some free advertising, powered by you and your tweet. So if you’re the type of person who loves to share their shopping excursions with the world – and you follow lots of people on Twitter who do the same – remember to start tagging your tweets with #AmazonCart.