To speed the discovery of vandalism, a page that pumps out diffs at a high rate on a specific page
may be a good idea.
I quote from my post at http://en.wikipedia.org/wiki/Wikipedia:Village_pump_%28proposals%
It would be similar in structure to Slashdot's Meta Moderation (http://slashdot.org/metamod.pl)
system: a designated page, perhaps Special:Monitor, would pump out X number of recent diffs made
within the last Y days, on one single page, for the purpose of fast eyeballing.
This would cut out the "middleman" of Recentchanges for those on janitorial duty; only the refresh
button needs to be repeatedly abused in order to view massive amounts of diffs and scan for
vandalism at a very fast rate.
The number of diffs and timerange to pull from can be user customisable, or fixed at say, 10 diffs
per page, pulled from diffs made within the last 5 days. The choosing of whether a diff displays on
Monitor can be completely random, or completely random, but "viewed" diffs are never viewed again,
or use a probability system. For a more frequently edited/viewed article, the diffs of the article
will appear on Monitor more frequently an already viewed diff would have its probability of being
chosen for Monitor cut, to say, 1/1000th of the original probability.