Digg now sports related stories by keyword and search

Social media website Digg.com now sports related stories under each article, determined either by search results (if you came to Digg via a web search) or keywords. See the screenshots below to know what I mean:

I came across the “Related to your search” only recently, and am already liking it. It allows me to discover new stories, similar to the related posts list on WordPress blogs, or even the Stumble Upon toolbar. Have you noticed the “Related by” section, and found it interesting?