1) Digg turned down an acquisition and regrets it. That was probably around 2006. 2) I'm pretty sure LinkedIn could have sold for a mighty sum in 2006. My gues

1) Digg turned down an acquisition and regrets it. That was probably around 2006. 2) I'm pretty sure LinkedIn could have sold for a mighty sum in 2006. My guess is they're pretty nervous that Facebook will subsume them. They might wish they had sold back then for $1 billion or whatever. 3) Very speculative: Xobni, but that was 2008. 4) Technorati may have turned down an offer in late 2005 that they would definitely take today. I'm not sure these prove anything, I just had fun trying to think of them.