Safari5 has lot of features with expanded  HTML 5 support, Apple highlighted their Safari reader as one of the main feature in Safari 5 which allows readers to read online articles in continuous clutter free view that too without ads.

How Safari Reader works

Safari reader in Safari 5 allows  readers to view online articles without ads, menu bars and other items on web pages.So with safari reader no more distraction for readers,readers can view clutter free view of page as only text appears .

Before using safari reader text page with no clutter in reader

Safari reader auto detects page if you are viewing article in webpage and shows reader button in the smart address field.Clicking reader button will shows the text with  clutter free view where you can navigate through the page by scrolling down.Once you are viewing article with reader, reader button appears with purple color.