Twitter vs. Email

Since this is my day to post X vs. Y entries, Twitter has hit 50M tweets per day. According to as of 2008 there were 183 billion email messages being sent each day by 1.3 billion people of which around 70% is spam or viruses (which I found surprisingly low; but then I suspect Twitter’s signal/noise ratio is even worse and there are no good filters). Twitter has been growing at a rate of 400% every six months, so at its current rate of expansion it should hit 183 billion tweets in three years, give or take. (Email growth is considerably slower—it averaged 14.6% from 2001 to 2007.)

Of course, in three years we’ll all be using Google Wave on our Windows Tablet 7 Series Tablets.