Placed on a DotNetNuke page, DNN Redirect will redirect users based on their roles, referrer or values in GET parameters. Redirects are very easy to setup by administrators. FREE as in Free Beer!
With DNN Redirect you can:

Redirect users to any url based on their role

Redirect users to any url based on their Referrer

Redirect based on GET and/or POST parameters

Use MyTokens in URL declarations

And so much more....