How big is Twitter in 2012? [infographic]
Some of the stats here are perhaps a little out of date, but a great overview of Twittter in 2012. Looking at how we use it, what we do on it and where it is big.
Twitter has unofficially passed the 500 million user mark — although it has nver confirmed that figure, and many think it is lower — and Lady Gaga how has more than 20 million Twitter followers, but interesting none the less. (click to expand).