The first shot fired in the Paper Revolution came from Facebook.
The second shot fired in the Paper Revolution came from Ashton Kutcher.
The third and perhaps the loudest shot fired in the Paper Revolution came today from Twitter, as reported in CNN's SciTechBlog:
Yes, that is a Twitter business card, which employees began handing out at the SXSW conference in Austin, Texas. Why would Twitter employees possibly use business cards?
From the CNN article:
A Twitter spokesman poked fun at the idea of business cards even as he listed the benefits of paper-based networking.