Thought provoking article by Larry Kim about how Google may (or may not) use web site dwell time as an indirect ranking signal.
Summary: there’s some correlation items, and personal viewpoints added, but nothing is concrete. That’s not to say it isn’t actionable – just thinking about how to improve your site engagement, and then implementing improvements, can only be a good thing.
As is often the case with well written articles, the comments have further gems. Consider for example the concerns raised by Mark Traphagen and then Larry’s response. Both really useful.