1.) The Where Are They? module shows a list of online users for your site, and the pages they are currently viewing. The module is localized and configurable. The first screenshot displays the default screen.

2.) You may also configure your Where Are They? module to only show users on a current page, customize the user display or only show registered users. Optionally you can also force a users online update, so the location is current (rather then waiting for the delayed timer).