Friend WatchDog

Friend WatchDog monitors the state of your friends on Facebook and Skype, stores the status changes on remote servers, and lets you check when your friends have been online in the past week.

Please note that you are sending status updates only when Friend Watchdog is up and running, and that status changes from multiple users are merged, so the more users of Friend Watchdog, and the more these users keep Friend Watchdog up and running, the more accurate will be the usage stats.