I will look into adding sharing icons to at least the blogs for the most popular social networking sites.  Most news sites and blogs have that "fruit salad" of buttons for Digg, Facebook, LinkedIn, Twitter, and the rest, but it's just something that nobody's ever requested here, and I never use those on other sites, so I've never added it here.

Just getting back from vacation here and I have a bit of a backlog of things to do, so it might be a couple weeks before I get to it, but it's on my TODO list.