Shrook 2.0 is the latest version of the RSS and Atom newsfeed reader. New features in Shrook 2.0 include: Smart Groups that allow flexible custom views and filters of incoming news; new iTunes-influenced user interface; support for the Atom syndication format; full back/forward history; individual view options for each channel; inline previews of item bodies for faster browsing; distinguishes new unread items from old ones; and the ability to mark items for later. Shrook is US$19.95 shareware and requires Mac OS X 10.3 (Panther).