What happened to the Support tap

I have just started to learn unity 3.5 yesterday and downloaded unity 4 today.
I noticed the support tab on the website is gone which contained resources is gone.
http://unity3d.com/support/resources/
What will become of this page?
Here is a link to the old page, I am wondering if the Unity extensions will still work for Unity 4?
Also, should I wait for Unity 4 tutorials or can I follow 3.5 ones?

Thanks

The Support section is being replaced with a whole new Learning section in the near future. None of the old examples were updated for 4.0, but most of them are still relevant and will work.

Thanks