Twitter quitters are fleeing the site in droves

Twitter quitters are fleeing the site in droves: "It seems that while people are joining the micro-blogging site in droves, a whole lot of them don't sticking around for long. A Nielsen Co. report released yesterday shows that 60% of Twitter users do not return to the microblogging site the next month. And for the 12 months prior to Oprah Winfrey joining Twitter this month with great media fanfare, the site had a retention rate of less than 30%."