Keep constantly up to date with the status of "Jet Set Willy: Online" games registered with Ovine's server.
Once installed, your browser will check in with Ovine at regular intervals to get the latest info on all running game servers, with alerts configured to popup whenever something changes.
Full details of all servers, games, and players can be viewed via a status bar tooltip, while the status bar itself displays the total number of running servers.
In addition, you can choose to ignore passworded servers, and configure the various events which trigger alerts (including receiving popups when certain players join or leave!)
"Jet Set Willy: Online" is available to download from http://jsw.ovine.net/