It was Twitter's second major blackout this year. Just last month, a "cascaded bug" took the site down for hours.
So what did people do during the Twitter downtime? Many turned to Facebook, of course. A flurry of Facebook status updates began popping up that looked a lot like...tweets.
On the day of its first public earnings, Facebook was flooded with 140-character-or-less bursts like, "why twitter, whyyyyyyyy?" from Takiia Antonia Wilson, "so...im in twitter jail or the 1st time...smh and i had something really important to tweet too!!!" from Heather Le'Anne Hunnicutt and "My twitter is having a problem. Not that I have something to tweet but I just need it working. ;)" from Lindo Mbathason.