Merge pull request awesome-foss#90 from dparlevliet/master

Neaten up the metrics area a little

README.md

@@ -414,22 +414,30 @@
 ## Metric & Metric Collection
 *Metric gathering and display software.*
 
-* [Collectd](http:https://collectd.org/) - System statistic collection daemon.
-* [Collectl](http:https://collectl.sourceforge.net/) - High precision system performance metrics collecting tool.
-* [Dashing](http:https://dashing.io/) - Ruby gem that allows for rapid statistical dashboard development. An all HTML5 approach allows for big screen displays in data centers or conference rooms.
-* [Diamond](https://github.com/BrightcoveOS/Diamond) - Python based statistic collection daemon.
-* [Facette](http:https://facette.io) - Time series data visualization and graphing software written in Go.
-* [Freeboard](https://github.com/Freeboard/freeboard) - A damn-sexy front-end real-time dashboard. Transforms raw JSON into delicious UI.
-* [Ganglia](http:https://ganglia.sourceforge.net/) - High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
-* [Grafana](http:https://grafana.org/) - A Graphite & InfluxDB Dashboard and Graph Editor.
-* [Graphite](http:https://graphite.readthedocs.org/en/latest/) - Scalable graphing server.
-* [InfluxDB](http:https://influxdb.com/) - Distributed time series database with no external dependencies.
-* [KairosDB](https://code.google.com/p/kairosdb/) - Fast distributed scalable time series database, fork of OpenTSDB 1.x.
-* [OpenTSDB](http:https://opentsdb.net/) - Store and server massive amounts of time series data without losing granularity.
-* [Packetbeat](http:https://packetbeat.com/) - Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
-* [Prometheus](http:https://prometheus.io/) - Service monitoring system and time series database.
-* [RRDtool](http:https://oss.oetiker.ch/rrdtool/) - Industry standard, high performance data logging and graphing system for time series data.
-* [Statsd](https://github.com/etsy/statsd/) - Application statistic listener.
+* Collectors only
+ * [Diamond](https://github.com/BrightcoveOS/Diamond) - Python based statistic collection daemon.
+ * [Collectd](http:https://collectd.org/) - System statistic collection daemon.
+ * [Collectl](http:https://collectl.sourceforge.net/) - High precision system performance metrics collecting tool.
+ * [Statsd](https://github.com/etsy/statsd/) - Application statistic listener.
+ * [tcollector](http:https://opentsdb.net/docs/build/html/user_guide/utilities/tcollector.html) - System statistic collection daemon written in Python for OpenTSDB
+
+* Dashboards
+ * [Grafana](http:https://grafana.org/) - A Graphite & InfluxDB Dashboard and Graph Editor.
+ * [Ganglia](http:https://ganglia.sourceforge.net/) - High performance, scalable RRD based monitoring for grids and/or clusters of servers. Compatible with Graphite using a single collection process.
+ * [RRDtool](http:https://oss.oetiker.ch/rrdtool/) - Industry standard, high performance data logging and graphing system for time series data.
+ * [Dashing](http:https://dashing.io/) - Ruby gem that allows for rapid statistical dashboard development. An all HTML5 approach allows for big screen displays in data centers or conference rooms.
+ * [Facette](http:https://facette.io) - Time series data visualization and graphing software written in Go.
+ * [Freeboard](https://github.com/Freeboard/freeboard) - A damn-sexy front-end real-time dashboard for the internet of things. Transforms raw JSON into delicious UI.
+
+* Storage
+ * [OpenTSDB](http:https://opentsdb.net/) - Store and server massive amounts of time series data without losing granularity.
+ * [KairosDB](https://code.google.com/p/kairosdb/) - Fast distributed scalable time series database, fork of OpenTSDB 1.x.
+ * [InfluxDB](http:https://influxdb.com/) - Distributed time series database with no external dependencies.
+
+* Packages
+ * [Prometheus](http:https://prometheus.io/) - Service monitoring system and time series database.
+ * [Packetbeat](http:https://packetbeat.com/) - Captures network traffic and displays it in a custom Kibana dashboard for easy viewing.
+ * [Graphite](http:https://graphite.readthedocs.org/en/latest/) - Scalable graphing server.
 
 ## Network Configuration Management
 *Network configuration management tools.*