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@@ -264,6 +264,7 @@ Over the last 16 months, as I've debated this issue around the world, every sing
 <h3>Related Information</h3>
 <ul>
 <li><a href="https://www.bestvpn.com/the-ultimate-privacy-guide/#avoidus" target="_blank">Avoid all US and UK based services</a>
+<li><a href="https://en.wikipedia.org/wiki/Surespot#History" target="_blank">Proof that warrant canaries work based on the surespot example.</a></li>
 <li><a href="http://en.wikipedia.org/wiki/UKUSA_Agreement" target="_blank">http://en.wikipedia.org/wiki/UKUSA_Agreement</a></li>
 <li><a href="http://en.wikipedia.org/wiki/Lavabit#Suspension_and_gag_order" target="_blank">http://en.wikipedia.org/wiki/Lavabit#Suspension_and_gag_order</a></li>
 <li><a href="https://en.wikipedia.org/wiki/Key_disclosure_law" target="_blank">https://en.wikipedia.org/wiki/Key_disclosure_law</a></li>