Originally Posted by Prestidigitweeze
Ah, but I've never written for readers. I've always written for myself and a few close friends. I once won an award for a collection of stories I never expected anyone
But to answer your question, the diaeresis is fairly common. See this blog entry
and then read any article in the New Yorker
Still I read news sites of all levels on and off all day long (literally). I am in grad school so there is a ton of reading there at the scholarly level. I do not think I have ever see these marks like you mentioned. So I have a hard time believing they are common at all.