From Marie Carnes, via email, a curious clue that Flickr now provides a list of feeds for groups you're subscribed to in OPML.
She sent this link:
http://www.flickr.com/recent.gne
And sure enough, there's a link, in the right margin, to an OPML file.
I clicked the link, it opened in my outliner, and it has feeds linked into each of the nodes. However, the feeds aren't familiar to me, and don't point to anything that Flickr could find.
Dave Winer, 55, is a visiting scholar at NYU's Arthur L. Carter Journalism Institute. He pioneered the development of weblogs, syndication (RSS), podcasting, outlining, and web content management software; former contributing editor at Wired Magazine, research fellow at Harvard Law School, entrepreneur, and investor in web media companies. A native New Yorker, he received a Master's in Computer Science from the University of Wisconsin, a Bachelor's in Mathematics from Tulane University and currently lives in New York City.
"RSS was born in 1997 out of the confluence of Dave Winer's 'Really Simple Syndication' technology, used to push out blog updates, and Netscape's 'Rich Site Summary', which allowed users to create custom Netscape home pages with regularly updated data flows." - Tim O'Reilly.