This is a brilliant sign from Douglas Wray on Instagram, via Daring Fireball.
Read more: http://www.businessinsider.com/every-single-social-network-explained-through-donuts-2012-2?nr_email_referer=1&utm_source=Triggermail&utm_medium=email&utm_term=SAI%20Select&utm_campaign=SAI%20Select%20Mondays%202012-02-13#ixzz1mGs2SouZ
