LifeinAsia - 5:43 pm on May 2, 2011 (gmt 0)
While probably not related to Panda, page load speed can be an issue. It all depends on how "massive" the blank space is. I've seen some page file sizes balloon to well over 200K because of white space- look at the page source and you may get several screens of nothing before seeing any text. On a heavily trafficked site, that can add up to some wasted money in bandwidth charges.