It wouldn’t be a sexy subject were it not for the imminent demise of “market” leader Google Reader, but Mat Honan’s article about Digg’s replacement service is a must-read.
The core Digg experience is one of discovery: It constantly has to be showing you something new to work. … This is where it gets neat: If Digg had its own news reader, it could immediately identify which stories people were actually reading—not just what they click on.