diff --git a/FOSS_course/data/web_os.csv b/FOSS_course/data/web_os.csv
index e4c0b352dbcfd1f4c7bd0c85424e0c4536e5f30e..d52245310aeb61c22e4c84b6c56304bfdfc0dfe7 100644
--- a/FOSS_course/data/web_os.csv
+++ b/FOSS_course/data/web_os.csv
@@ -1,3 +1,3 @@
 Name,percent
-Unix,69.4
-Windows,30.6
+Unix,70.5
+Windows,29.5
diff --git a/FOSS_course/data/web_servers.csv b/FOSS_course/data/web_servers.csv
index ca6466a9a5231a05883e811c073f4887992ab6c6..f1b36a9e5f45464a717183c35cd772ec14f63896 100644
--- a/FOSS_course/data/web_servers.csv
+++ b/FOSS_course/data/web_servers.csv
@@ -1,5 +1,6 @@
 Name,percent
 Apache,44.0
-Nginx,41.4
-Microsoft-IIS,8.7
+Nginx,30.7
+Cloudflare Server,11.2
+Microsoft-IIS,8.2
 other,5.9
diff --git a/FOSS_course/slides.pdf b/FOSS_course/slides.pdf
index e4da751fdb5a6318fbde6cb34d77f31bf764e425..955982e5e1816268cfaa9b8fc0ddee1ff8ab3d8d 100644
Binary files a/FOSS_course/slides.pdf and b/FOSS_course/slides.pdf differ
diff --git a/FOSS_course/slides.tex b/FOSS_course/slides.tex
index 3f3998e9c557d7baf5d20f7215ed4f1dd64e2f1a..218634ab4b95e10b9b665f91287fc05fc81c8b28 100755
--- a/FOSS_course/slides.tex
+++ b/FOSS_course/slides.tex
@@ -331,12 +331,14 @@
 	\section{Users/Developers}
 		\subsection{Who benefits from FOSS?}
 			\begin{frame}{The Internet}
+				\vspace{-.3em}
 				\begin{columns}
 					\column{0.5\linewidth}
 						\begin{figure}[htbp]
+						\vspace{-0.75em}
 						\centering\tiny
-							\DTLpiechart{radius=0.23\textheight,variable=\quantity,innerlabel={\DTLpiepercent\%},outerlabel=\name,cutaway={1-2}}{server}{\name=Name,\quantity=percent}
-							\caption{Web Server Market Share 2019-03-11 via \href{http://w3techs.com/technologies/overview/web_server/all}{w3techs}}
+							\DTLpiechart{radius=0.235\textheight,variable=\quantity,innerlabel={\DTLpiepercent\%},outerlabel=\name,cutaway={1-2}}{server}{\name=Name,\quantity=percent}
+							\caption{Web Server Market Share 2019-10-04 via \href{http://w3techs.com/technologies/overview/web_server/all}{w3techs}}
 						\end{figure}
 					\column{0.5\linewidth}
 						\begin{figure}[htbp]
@@ -344,8 +346,8 @@
 	%change color palette to preserve green for free and red for non-free
 	\DTLsetpiesegmentcolor{1}{green!40}
 	\DTLsetpiesegmentcolor{2}{red!40}
-							\DTLpiechart{radius=0.235\textheight,variable=\quantity,innerlabel={\DTLpiepercent\%},outerlabel=\name,cutaway={2}}{os}{\name=Name,\quantity=percent}
-							\caption{Website OS Market Share 2019-03-11 via \href{http://w3techs.com/technologies/overview/operating_system/all}{w3techs}}
+							\DTLpiechart{radius=0.265\textheight,variable=\quantity,innerlabel={\DTLpiepercent\%},outerlabel=\name,cutaway={2}}{os}{\name=Name,\quantity=percent}
+							\caption{Website OS Market Share 2019-10-04 via \href{http://w3techs.com/technologies/overview/operating_system/all}{w3techs}}
 						\end{figure}
 				\end{columns}
 			\end{frame}