Most Instant Messenger users broadcast when they sign on, sign off, go idle, and flag themselves as away. This presence information is typically innocuous, useful for knowing if your buddies are available to chat. But when monitored continuously, over long time periods, those few signals tell a lot. This website lets you record and analyze anybody's IM activity.
First, create an account and enter a personal list of buddies to watch. The IMWatching service then starts recording when each buddy is offline, idle, active, and away. As the data accumulate, check back here to see many reports, including:
a graphical summary of their recent activity,
which buddy spends the most time online,
when a buddy typically first signs on each day, and
what time your friend signed off last night.
To see more right now, try our demo account.
http://www.imwatching.net/