"The most valuable "real estate" on your homepage is located
above the fold, or the part of your page that appears in a
browser before the need to scroll down. Visitors see this
part of your site first and what appears here will help them
decide whether or not they will stick around." --
rmhwebdesign.com
Here's
a list of sources that offer information about above-the-fold. Check them out
for more info.
