diff --git a/thesis/2-Background.tex b/thesis/2-Background.tex
index c791ea3c961a64821e6e05ed9ce0c54ef11fa724..3b732d71821c7df253ee3f91052b1ba03522f573 100644
--- a/thesis/2-Background.tex
+++ b/thesis/2-Background.tex
@@ -70,7 +70,18 @@ socio-technical assemblages (see Geiger)
 \subsection{Humans}
 * what part of the quality control work do humans take over? (in contrast to the algorithmic mechanisms)
 
+\url{https://en.wikipedia.org/wiki/Wikipedia:Recent_changes_patrol}
+
 \subsection{Semi-automatic tools}
+
+Huggle, Twinkle, STiki
+
+\url{https://en.wikipedia.org/wiki/Wikipedia:AutoWikiBrowser}
+
+\url{https://en.wikipedia.org/wiki/User:Lupin/Anti-vandal_tool}
+"Please be aware that the original author of AVT (Lupin) is no longer active on Wikipedia. The script is very old and might stop working at any time."
+"By using the RC feed to check a wiki-page's differences against a list of common vandal terms, this tool will detect many of the commonly known acts of online vandalism. "
+
 \subsection{Bots}
 \subsection{ORES}