Find resources using filters by level, exam, type..
http://www.cambridgeenglish.org/teaching-english/resources-for-teachers/
Cambridge English TV is a YouTube channel set up with lots to watch
Be aware - in particular - that Speaking Exams with examiner notes are available. These are a great way to help students get familiar with the format and the type of information they can prepare in advance:
https://www.youtube.com/user/cambridgeenglishtv/videos?sort=p&view=0&shelf_id=2
For Young Learners, there's our own World of Fun website
World of Fun
...and specifically for Kid's Box
Kid's Box resources (many will require registration as a teacher)
Kid's Box excellent website created by our Spanish colleagues
Kid's Box (Spain)
Also for Prepare!
Prepare! resources (most will require teacher registration on the website)
And for Compact Advanced
Compact Advanced resources (most will need teacher registration)