diff --git a/get_blocklists.sh b/get_blocklists.sh
index 9a71374..1e39c76 100755
--- a/get_blocklists.sh
+++ b/get_blocklists.sh
@@ -16,7 +16,7 @@ if ping -c 1 -W 2 www.google.fi &> /dev/null ; then
 	# Blocklists
 	# has hosts format
 	fetch_hosts 'https://adaway.org/hosts.txt' "adaway.txt"
-	fetch_hosts 'https://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts&showintro=0&mimetype=plaintext' "yoyo.txt"
+	fetch_hosts 'https://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts&showintro=0&mimetype=plaintext' "yoyo.txt" # Peter Lowe's list
 	fetch_hosts 'https://raw.githubusercontent.com/FadeMind/hosts.extras/master/UncheckyAds/hosts' "UncheckyAds.txt"
 	fetch_hosts 'https://raw.githubusercontent.com/bigdargon/hostsVN/master/hosts' "hostsVN.txt"
 	fetch_hosts 'https://raw.githubusercontent.com/FadeMind/hosts.extras/master/add.2o7Net/hosts' "FadeMind.2o7Net.txt"
diff --git a/whitelist.txt b/whitelist.txt
index 90fd268..4f1c6d8 100755
--- a/whitelist.txt
+++ b/whitelist.txt
@@ -21,6 +21,9 @@ linkinghub.elsevier.com
 api.altmetric.com
 www.altmetric.com
 
+# Twitter
+t.co
+
 #---------------
 # nordea.fi
 # account.mojang.com