Crowd Science has found some interesting facts about Twitter-ers. Here’s an extract from their press release:

“Twitter is more of a mobile media phenomenon than other social networks, so these results, while a little disturbing, are perhaps not so surprising,” noted John Martin, CEO of Crowd Science. “And even though checking updates outpaces tweeting by almost two to one, the bottom line is that either type of activity takes a driver’s attention away from the road.” 
Indeed, Crowd Science found that only a quarter (27%) of Twitter users tweet daily, while nearly half (46%) check updates daily. In addition, 24% of Twitters users have never tweeted, or have ceased doing so.

A couple of other interesting notes about those who twit: almost one-third of twitterers say they spend too much time using social media, while a quarter say that social media is what they love doing most.