Well, the SB Nation tech wizards are at it again, enabling mobile commenting on all blogs. I don't use a mobile device myself, but I'm guessing you just comment like you would on a "real" computer. I apologize to your bosses in advance for your productivity losses at work. I also now expect lots of commenting from ballparks.
Second, it's really easy to share others' articles via Twitter -- simply click the green Tweet/Retweet button. The number next to it has something to do with TweetMeme, which I'm not familiar with, but I think it has something to do with the total number of people who have tweeted a link to that post.
Mmm, tech upgrades.