My favorite thing about Twitter, though, is this: it is bringing teachers together who refuse to remain stagnant. In schools, where the pressures to perform exhausts teachers, there is often a lack of energy and excitement about new technologies and new ideas. Other teachers don't always want you popping into their rooms and chattering about the great new idea you heard. Twitter is a place where everyone welcomes ideas. You don't stress your colleagues out, and information is a valuable commodity.
If you don't have a Personal Learning Network (your very own PLN) started on Twitter, consider it.