Useful side-by-side of “social reader” sites Reddit, (new) Digg & Buzzfeed.
Still like Reddit most, and think the inscrutable Digg is way too proud of its dedicated efforts to be useless/unwelcoming to motivated sharers (er, social media marketing types, etc.). Buzzfeed is lots of clever jokes, but not sure there’s much there there when you look hard (as this piece also suggests).
What do you use of these programs? Any of them? All of them?