But traffic dipped at eBay, Amazon and other electronic commerce sites because people could not plug in to log on.
When the marketing ended, traffic dipped to about 600,000 unique visitors in May.
Recently, though, changes to how Facebook promotes apps have seen BranchOut's traffic dip.
In addition to an overall traffic dip, average time spent on the site was down 10percentt, Hitwise says.
As our friends over at GigaOm pointed out today, "Facebook's faltering didn't lead to any noticeable traffic dip".
"It's disappointing to see the traffic dip, and I think it was a testament to how viral word of mouth can be".
Data shared with the BBC by one ISP which wished to remain anonymous showed that peer-to-peer traffic dipped when the Pirate Bay block initially happened but returned to normal levels within a week.
Update: as pointed out in the comments, the traffic dip might be related to users heading back to school…that's one big dip, but I'm willing to accept it as an explanation.
Flights Airlines including American, Delta, JetBlue and Virgin America say traffic typically dips on Super Bowl Sunday, offering more wiggle room onboard, though the next day is more crowded than usual.
Boeing and Airbus both released forecasts recently suggesting that commercial air traffic, which dipped last year, will return over several years to its usual average growth rate of 5 percent each year.
