Wanna know where Twitter came from?
Saw this on a tweet ealier today. Here's the original sketch by Jack Dorsey for what became Twitter. Originally, it was going to be called STAT.US.
It's not a napkin start-up, but it's pretty darn close. I love seeing/reading about the origins of companies. It always amazes me how the simplest ideas can be so ingenious...
See the full post and a bit of background in Jack Dorsey's Flickr album.