Twitter isn't just for gleaning the day to day minutiae of your friends. It can be good for your brain as well.
Last night I spent about a half hour subscribing to about half a dozen news agencies' Twitter feeds: The AP, The New York Times, The Financial Times, Reuters Business, etc. Now when I open Twitter on my iPhone I see all kinds of headlines, as well as links to stories. Never again will I say out loud, "What's going on in Russia?"
I'm a gal on the go. A typical day for me has me in at least three different neighborhoods, which leaves very little time for scanning the headlines. The one thing I miss about not working in daily journalism is constantly being updated about events. No more, I tell you.