In a Monday blog post, Kevin Weil, the analytics head at Twitter, said that the micro-blogging site has achieved a new milestone – its users, on an average, send out almost 50 million tweets every day – that is, nearly six hundred tweets per second!

The achievement of the new landmark clearly depicts that Twitter has grown from strength to strength over the years – while the site had only 5,000 tweets per day in 2007; the number leaped to 300,000 in 2008; and to 2.5 million in
2009. In fact, almost all through 2009, the average number of Tweets witnessed a substantial jump to 35 million per day.

Noting that the momentous new figures omit tweets from accounts that are supposedly spam, Weil said that 50 million tweet only comprises the number of tweets made by users – and, as such, the actual number of tweets delivered Twitter are much higher, and would include the tweets sent to all followers of all users of the service!

Weil elaborated: “Tweets per day is just one number to think about. Tweet deliveries are a much higher number because, once created, tweets must be delivered to multiple followers. Then there's search and so many other ways to measure and understand growth across this information network. We'll make time to share more information so please stay tuned.”