How to save user's information across the whole web site?

Hi Guys.
I have a question about which is the best way to store user info across the
whole website. Now I have 3 web servers and each server has enabled the web
garden (6 wps). now I want to save the current user's detail across the
whole website without using session. I am considering saving in
HttpContext.Current.Items or NamedDataSlot in each thread. which one is more
reliable (or better) in this situation? Or any reference of the comparison
of these two?

Thank you.


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