It looks like you're probably either seeing a Helvetica variant or Arial:

body {text-align:center; font: 0.8125em 'Helvetica Neue','HelveticaNeue',Helvetica, Arial, sans-serif; background:#97a1aa url(http://i.techrepublic.com.com/images/200806/bkg_body.gif) repeat-x 0 0;}

I tend to prefer Verdana, personally. Of course, I'm not sure about that, since the complexity of TR stylesheets is incredible.