The tweet counter from popacular.com has passed the one billion mark. That's a lot of tweets in a relatively short amount of time.
As a comparison Mashable notes that Facebook recently said they now host over 10 billion photos which is over three times more than Flickr's recent 3 billionth photo claim. Photos are not the same as tweets but it does show that Facebook is huge. Now that Facebook has had status updates for a while it will be interesting to see which one gets bigger.
