Social media companies have been duking it out for my time and attention, which is fine with me. Using social media is like going to a cocktail party where you only have to talk to the people who interest you. It doesn’t hurt to look in on the ones that drive you mad, too.

Which brings me to my point: You’ve got to check out the new StumbleUpon app, if you have an iPhone or Android, and the new Digg, either way

My StumbleUpon profile is at stumbleupon.com/stumbler/KeffJ/

My new Diggs are at new.digg.com/jeffkart

Why is this important? What does it have to do with the environment? Everything. I Stumble and Digg lots of environmental stories, and am exposed to many more via my Stumble and Digg friends.

Sure, I have real, live friends, too. Which reminds me, I’ve got to go right now. I’m on my way to a real, live cocktail party.