[lubutu]

To be precise: cons (:), bind (>>=), 'constant bind' (>>), 'flipped bind' (=<<), compose (.), apply ($), strict apply ($!), append (++), and subscript (!!).

[joeyh]

I had never seen $! before, of course it's obvious what it does if you know ! and $. There are patterns like this throughout the operators.

There are also the applicatives <$> <*> <$ etc.