diff --git a/README.md b/README.md
index 4fef5bc..f008f68 100644
--- a/README.md
+++ b/README.md
@@ -178,6 +178,7 @@ A curated list of amazingly awesome open source sysadmin resources inspired by [
 * [Collectd](http://collectd.org/) - System statistic collection daemon.
 * [Collectl](http://collectl.sourceforge.net/) - High precision system performance metrics collecting tool.
 * [Diamond](https://github.com/BrightcoveOS/Diamond) - Python based statistic collection daemon.
+* [Ganglia](http://ganglia.sourceforge.net/) - High performance, scalable RRD based monitoring for grids and/or clusters of servers.  Compatible with Graphite using a single collection process.
 * [Graphite](http://graphite.readthedocs.org/en/latest/) - Open source scaleable graphing server.
 * [InfluxDB](http://influxdb.com/) - Open source distributed time series database with no external dependencies.
 * [RRDtool](http://oss.oetiker.ch/rrdtool/) - Open source industry standard, high performance data logging and graphing system for time series data.