If you've noticed something different here and you're not sure what it is. It's the fonts. I've made the posts "Times New Roman" and the titles "Arial". I've also made all the font sizes percentages, which should mean that if you change the size of the text for your browser that change should be seen here, too. (If you have a wheel between the buttons of your mouse try holding down "CTRL" and moving the wheel up or down to see what I mean).
Anyway, apparently serifed fonts are easier to read, so I thought I'd give it a try.