Recent quotes:

I never acquired the mindset of wanting to see everything that some group of people were writing. I have always been willing to see what posts found their way to me, instead of beating a path to them.
How to build — or kill — a social community
If you want a community with higher connection, provide more definition to your social object
Google Reader is just the latest casualty of the war that Facebook started, seemingly accidentally: the battle to own everything.