diff --git a/README.md b/README.md
index 7982a50..9624453 100644
--- a/README.md
+++ b/README.md
@@ -174,6 +174,7 @@ A curated list of amazingly awesome open source sysadmin resources inspired by [
 *Metric gathering and display software.*
 
 * [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
 * [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.