What can the World Wide Web offer ESL/EFL teachers?

That is a good question, what can the www offer. I think the World Wide Web offer many things. We, as teachers, are living in the www, we use it almost every day, we have a treasure of

information, we can found many tools to change the way of our classes, improve our skills and the skills of our students. They are many web hosting in which ones we can found podcast and vodcast to improve our English. Also there are many pages about grammar, pronunciations, phonetics, spelling, listening, games, books, magazines, articles, and many resources we can use in our classes.
 We can found information about everything but we have to be careful what information I use in my classes because not all the information is dependable.