How to keep websites unblocked

YouTube is perhaps best known for its cavalcade of homemade performances and TV clips, but many people are turning to it for free tutoring in math, science and other complicated subjects. Math videos won't rival the millions of hits garnered by laughing babies, but a YouTube tutorial on calculus integrals has been watched almost 50,000 times in the last year. Others on angular velocity and harmonic motion have more than 10,000 views each. The videos are appealing for several reasons, said Kim Gregson, an Ithaca College professor of new media. Students come to the videos when they're ready to study and fully awake, which is not always the case in 8 a.m. calculus classes. And they can watch the videos as many times as they need until they understand. Benton. Original article in LA Times.
Our district does not block YouTube. We give it a very low priority setting in our packetshaper and we have had regular requests to have it blocked. But YouTube remains accessible to our staff and students.
But to keep it this way, we keep as many people as possible informed about its postive uses. See graph:
So far, so good...
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Update (Dec 19): Joyce Valenza at NeverEnding Search has a great blog post called When YouTube is blocked (seven ways ways around). If you don't have any ethic issues with violating YouTube's Terms of Use (and I don't), these are some easy ways to save YouTube videos to your desktop.