Tweet-a-Beer Lets You Buy Drinks for Favorite Twitter Followers
By: Marissa Brassfield
Published: March 17, 2012

Tweet-a-Beer is a clever service that links to your PayPal account, enabling you to buy a beverage for one of your Twitter buddies at will. The service uses Chirpify to pre-approve PayPal payments in $5 increments.
Recipients of a round can then log in to Tweet-a-Beer to get the money deposited into their PayPal account. For another clever Twitter integration, check out this cafe that uses hashtags to take orders via Twitter.