Combined Recent Changes

see http://www.elvis.ac.nz/brain?CombinedRecentChanges and http://www.mcs.vuw.ac.nz/~donald/cgi-bin/recentchanges

We of the ElvisSoftwareDesignResearchGroup use it to display aggregated RecentChanges across the personal wikis that many of our members maintain; it solved the problem of people adding content to their own wikis and no one else ever finding out about it.