Google Wave
It was an interesting thing (Totally unlike what Google seems to do at the moment).
Lars Rasmussen has quit Facebook after nearly five years as director of engineering at the free content ad network. He defected from Google to the Mark Zuckerberg-run company in 2010 in the immediate aftermath of the failure of his wonky Wave project, which he described at the time as being a "little stressful" to try to get …