This is one of the most interesting social projects I’ve seen lately. Jonathan Stark has released a picture of his Starbucks card to the public in an effort to give away cups of coffee. No limits, just use to your heart’s content. At the same time, Jonathan is also allowing random people to refill the card with whatever amount they choose. He’s also set up a Twitter account that automatically tweets the amount on the card to tell you when it’s been refilled and when it’s empty (presumably so somebody can fill it). It’s actually quite fun to watch the Twitter feed call out its amount.