I’ve become addicted to two things on the intertron recently: the Cook (almost) Anything at Least Once Blog and The Guardian’s gallery of photos from the last 24 hours. Sadly there doesn’t appear to be a general link but there is a link on the front page for each day.
There was one photo that really caught my attention today: Ouch.
Update: See comments for the link that I failed to find. 
You could subscribe to the RSS feed for The Guardian’s gallery. Maybe that doesn’t give you what you want, though.
http://www.guardian.co.uk/news/series/24hoursinpictures , with RSS?