This is great content, but it is so hard to read. The light blue against the light gray is rough on the eyes, and the font size/style isn't helping either.
Update: so, i removed the dot texture on the page and also changed the google webfont to "gudea" instead of "open sans" and it seems to be a lot more readable. i think if the authors of the site changed the font to something more readable, all would be good. the font i choose was just picked at random.
see my edits: http://dl.dropbox.com/u/103326/after_Gudea.png
javascript:void((function(){jQuery("body").css("font-family","hevetica,arial,sans-serif");})());
Changing it to Helvetica (or Arial) make a little bit easier to read (Putting above code into URL bar does this).