diff --git a/firefox-regional/fanboy-adblocklist-cz.txt b/firefox-regional/fanboy-adblocklist-cz.txt
index 059ed5525..ec0472cd9 100644
--- a/firefox-regional/fanboy-adblocklist-cz.txt
+++ b/firefox-regional/fanboy-adblocklist-cz.txt
@@ -1,5 +1,5 @@
 [Adblock Plus 1.1]
-! Checksum: iDeIiVdcsHxVsTBSrqdqaQ
+! Checksum: gMzWZfzse15k/x6AP+5PMA
 ! Fanboy's Czech-addon Adblock list 
 ! Version: 023B Updated: 27 Apr 2010
 ! This list expires after 5 days
@@ -37,6 +37,7 @@ _clickthru.swf?
 ||ad.seznam.cz^$third-party
 ||advantage.as^$third-party
 ||autoesa.cz/files/bannery/
+||b.lookit.cz^$third-party,subdocument
 ||banners.onebit.cz^$third-party
 ||bbmedia.cz^$third-party
 ||data.idnes.cz/soutez/
diff --git a/iron/adblock-cz.ini b/iron/adblock-cz.ini
index e8922fa47..d8f6efeb3 100644
--- a/iron/adblock-cz.ini
+++ b/iron/adblock-cz.ini
@@ -44,6 +44,7 @@
 _clickthru.swf?
 http://ad.adfox.cz/
 http://ad.seznam.cz/
+http://b.lookit.cz/
 http://banners.onebit.cz/
 http://data.idnes.cz/soutez/
 http://dot.idot.cz/
diff --git a/opera/urlfilter-cz.ini b/opera/urlfilter-cz.ini
index df90eb9fe..0000d69ad 100644
--- a/opera/urlfilter-cz.ini
+++ b/opera/urlfilter-cz.ini
@@ -42,6 +42,7 @@
 */x-cz/rek/*
 *_clickthru.swf?*
 http://ad.seznam.cz/*
+http://b.lookit.cz/*
 http://banners.onebit.cz/*
 http://data.idnes.cz/soutez/*
 http://dot.idot.cz/*