diff --git a/a.4-best-practices/content.tex b/a.4-best-practices/content.tex
index 162441f..c8bce75 100644
--- a/a.4-best-practices/content.tex
+++ b/a.4-best-practices/content.tex
@@ -50,7 +50,7 @@
 		\item Banks, payment processors, etc.
 		\item Sharing of {\bf mule accounts} and {\bf non-cyber threat infomartion}
 	\end{itemize}
-	\item X-ISAC
+    \item X-ISAC\footnote{\url{https://www.x-isac.org/}}
 	\begin{itemize}
 		\item {\bf Bridging the gap} between the various sectorial and geographical ISACs
 		\item New, but ambitious initiative
@@ -62,10 +62,10 @@
 \begin{frame}
 \frametitle{Communities operated by CIRCL}
 \begin{itemize}
-	\item Coming up - the ATT\&CK EU community
+        \item the ATT\&CK EU community\footnote{\url{https://www.attack-community.org/}}
 	\begin{itemize}
 		\item Work on attacker modelling
-		\item With the assistance of Mitre themselves
+		\item With the assistance of MITRE themselves
 		\item Unique opportunity to {\bf standardise on TTPs}
 		\item Looking for organisations that want to get involved!
 	\end{itemize}