I did it for two reasons. First, for me, as for many people, Twitter has changed my approach to blogging. If I want to put up a link with a brief comment, I do it on Twitter, often on Facebook as well, and rarely on Media Nation. Ten years ago, by contrast, I would have run everything on my blog.
Second, I tend to be less disciplined than I’d like on Twitter. (How’s that for a euphemism?) Having a little voice in my head reminding me that whatever I post on Twitter will also show up on Media Nation is a good thing.
And speaking of how social media have changed blogging, a reminder: I post links to all Media Nation articles on Facebook, where a much richer discussion generally takes place than is the case here. You don’t have to friend me — just follow my public feed.