Like unfollowing a man, but better
I found the #UnfollowAMan piece completely charming, actually. But I’m not about to unfollow all (or even any) of the men in my twitter feed–they are there because they contribute something useful OR because they are horrifyingly entertaining (see: @FrankLuntz). But the piece raises a good point–even a cursory look at my professional twitter account (where I follow mostly academics) shows way more men than women. I also retweet men more often than I retweet women.
So, I created a Twitter list of awesome women (who tweet on topics relevant to my work) and moved it to a prime location on my TweetDeck. Now I see it right away when I check Twitter, and (I hope!) am more likely to retweet and generally pay attention to the smart things my non-male colleagues say.