Akshay at Social Media Research Blog has done something very interesting. He wants to find how every user in FriendFeed is connected to Bret Taylor, FriendFeed's founder (reminded me of a similar example in Malcolm Gladwell's book, 'The Tipping Point' - the one mentioned there is actor Kevin Bacon). Akshay has all his data on Zoho Sheet containing more than 70,000 users listed along with their 'bret number' - the degrees of freedom or separation between you & Bret. That's the largest public sheet that I've come across so far.

If you are on FriendFeed, find your 'bret number'.