question about meta tag

[cmotor]

I recently saw this tag: <META HTTP-EQUIV="CACHE-CONTROL" CONTENT="no-cache">

Does anyone know what it is used for.

What is a good site to learn about the "more obscure" meta tags and what they are for.

-cmotor

[TheBearMay]

This site seems to have a pretty good listing if you can ignore the frames layout:

http://www.drclue.net/F1.cgi/HTML/META/META.html