Where do You Gather Your Educational Videos?

YouTube is great ...  most of the time.  It sometimes makes crazy recommendations after we're done watching the video that I don't want my students to see or comment on.  So, what alternatives are there?

One of my most favorite (and FREE) websites is WatchKnowLearn.   

Why do I love it?  Let me count the ways:

1. It gathers videos from TeacherTube, YouTube (yes, I still use it), and a host of other websites so you don't have to go looking at all of them at once.
2. You can change the age filter so it only searches for age-appropriate material for your students.
3. Teachers can even directly upload the videos they've personally created. 

In short, it's a lifesaver for me.

How about you?  What website do you rely on for quality educational videos?