The folks over at TweetVOLUME have produced a tool for counting the mentions of words or phrases on the Twitter micro-blogging platform.
I thought that it would be an interesting, though not especially significant, metric for comparing open source projects.
The graph above shows the number of twits in which Zenoss, Nagios, Hyperic, OpenNMS or MRTG were mentioned according to the TweetVolume algorithm.
The graph once again shows that Nagios is ahead of everybody. The rest are too close to draw any meaningful conclusions.
You can experiment yourself. Enjoy!