Real-Time

Browzin'! lists active users of your site over a specified period of time. Everything can be configured to your taste. It currently uses a MySQL database on backend but a text-only version will be released in the near future.

Users Online is a PHP class that displays the number of users that are currently on your site.

Who's Connected is a set of two small PHP scripts that use MySQL to display the number of users who have viewed a page within the last minute (can be modified). First script will add the connection to a table in MySQL. The second script will display the number of users.