diff --git a/devdocs/specs/core-ops-support-info-log.txt b/devdocs/specs/core-ops-support-info-log.txt
index 8c4a7f59..a8623190 100644
--- a/devdocs/specs/core-ops-support-info-log.txt
+++ b/devdocs/specs/core-ops-support-info-log.txt
@@ -1,5 +1,7 @@
 SYSOPS HEALTH CHECK / METRICS
 
+https://www.datadoghq.com/blog/monitoring-101-collecting-data/
+
 OK, considered this and a log is a log and all logs are relevant to sysops people so I'm going to treat all logging the same regardless and make an effort to ensure each log entry
 is tagged with the relevant class name