 Pilgrim has also written a monthly column "Dive Into XML" for O'Reilly's XML.com.Pilgrim contributed to a number of open source works including

Pilgrim was a vocal critic of Creative Commons licensing, which he believed needlessly cluttered the licensing environment of open source software.From 4 October 2011, Mark Pilgrim's various websites (diveintomark.org, Dive Into HTML5, Dive Into Accessibility, Dive Into Greasemonkey, Dive Into Python, etc.)