comment on poetic justice in othello

There is a great article on the poetic justice in Othello at the link provided below. It's from the Shakespeare Theatre Company

An example of poetic justice in Othello is that in the end.......... everyone finds out exactly who and what Iago is. Iago goes through the course of the play manipulating everyone around him......... never dreaming the time would come when they'd all compare notes. When he's finally taken away.......... that's poetic justice; he got exactly what he deserved.