FLOSSisnot4Teeth writes "You probably are familiar with Nagios and Webmin as two of the most widely deployed open source systems management applications. However, this month's SourceForge.net Project of the Month is probably a newcomer to open source systems and network administrators. Zenoss Core is a systems monitoring platform, released under GPL and over the last year it's become one of the most popular SF.net projects. Unlike most of these new "commercially backed" open source projects, Zenoss Core is the only version, their corporate sponsor doesn't offer a "pro version". Also their developers have been committing code back to other projects like RRDTool and Twisted. I have been playing around with Zenoss for about six months and have been totally impressed. Would be curious to see what other Slashdot readers think." SourceForge.net and Slashdot are both owned by OSTG.