>> zuck pinged me to say "i'm not sure if this is a good idea yet, but i think maybe facebook should buy instagram, what do you think?" [0]
The next conversations also read as if they were happening over lunch, albeit with lawyers whispering approved language into each participant's ear [1]
Side note: the conversation in your second link comparing Wikipedia’s model to Instagram and Fb is interesting, especially Kevin’s response about photos living a life of their own on Fb. Even though that integration got a bit tighter, interactions with a Insta photo shared to Fb are still totally separate. The subsequent conversations about graphs and audiences explain that, but it’s still interesting to see how some things were realized early on that never change.