TED is a nonprofit organisation devoted to Ideas Worth Spreading. It started out in 1984 as a conference bringing together people from three worlds: Technology, Entertainment, Design.

It is a great resource for intermediate and avanced students ideal for its use in Bachillerato English lessons. You have the option of watching conferences with English subtitles to help students understand them better. It can be followed by a debate about the students' opinions about what they have just seen.

It can also be used to keep teachers' English skills up to date as there are many conferences at a high level and about all possible topics.

Have a look and judge for yourself.