I’ve come to realize that many web designers don’t understand what “Above the Fold” and how it really should be used. Above the Fold is an old print newspaper layout term for what’s on the top part of the page, the part that is displayed in the window at the newspaper stand. In web design, the term is used for the bits that the user can see without having to scroll
Read all about it on my blog at - Above the Fold and how It Really Should be Used