http://weavora.com/blog/2012/10/21/web-design-trends-we-love/
Single page websites
Once frowned upon by both clients and designers, long pages which require a lot of scrolling are now all over the web. One explanation is that users are so accustomed to vertical scrolling (assisted by mouse wheel) that it’s actually worse to split the content on separate pages – it requires more effort from users to find it and reach it.