the scrollbar on 76% of the pages and 22% of those pages were scrolled to the bottom. Source: http://blog.clicktale.com/2007/10/05/clicktale-scrolling-research-report-v20-part-1-visibility-and-scroll-reach/ Source: http://blog.clicktale.com/2007/12/04/clicktale-scrolling-research-report-v20-part-2-visitor-attention-and-web-page-exposure/
willing to scroll, despite claiming that they won’t. He also found that longer pages even worked better for users. Source: http://www.uie.com/articles/page_scrolling/