What object can help you maintain data across users?

Answer is Application object -
An application on the Web may consists of several ASP files that work together to perform some purpose. The Application object is used to tie these files together.
The Application object is used to store and access variables from any page, just like the Session object. The difference is that ALL users share ONE Application object (with Sessions there is ONE Session object for EACH user).

The Application object holds information that will be used by many pages in the application (like login user name in all pages for the current user).
The information can be accessed from any page. The information can also be changed in one place, and the changes will automatically be reflected on all pages.