Web users spend 80% of their time looking at information above the page fold. Although users do scroll, they allocate only 20% of their attention below the fold. from Jakob Nielsen's Alertbox.

There is no page fold.

"Over the last 6 years we’ve watched over 800 user testing sessions between us and on only 3 occasions have we seen the page fold as a barrier to users getting to the content they want."

from smashing magazine.

"Basically, users have no trouble scrolling, as long as the page is designed to accommodate it."

"In more recent studies, we have seen that most users scroll when they visit a long home page or a long navigation screen."

"Nowadays, scrolling has become a natural practice in surfing the web. Scrolling is also associated with web 2.0 design because big, clear text and “spacious”, “clean” content implies longer web pages."

"'Holding on to this disbelief – this myth that users won’t scroll to see anything below the fold – is doing everyone a great disservice, most of all our users.'"

"Stop worrying about the fold. Don’t throw your best practices out the window, but stop cramming stuff above a certain pixel point. You’re not helping anyone. Open up your designs and give your users some visual breathing room. If your content is compelling enough your users will read it to the end."