***NOTE: I discovered today (4/24/2008) that it does not work with Opera 9.5 beta2***

1. Create a new text file in /home/username/.opera and name it urlfilter.ini.
2. Insert the following as content for the new file


Opera Preferences version 2.1
; Do not edit this file while Opera is running
; This file is stored in UTF-8 encoding

[prefs]
prioritize excludelist=1

[include]
*

[exclude]
:Lorenzo's List
http://*.0v3n.*
http://*.adnet.*
http://*.adpreference.*
http://*.ads/*
http://*.assoc-amazon.*
http://*.awsurveys.*
http://*.buscape.*
http://*.clearspring.*
http://*.clicksor.*
http://*.emediate.*
http://*.geovisite.*
http://*.icoonet.*
http://*.mediaplex.*
http://*.qksz.*
http://*.yceml.*
http://*/ad-it.*
http://*/ad.*
http://*/ad_*
http://*/adclick.*
http://*/adimage.*
http://*/adj/*
http://*/adjs.*
http://*/adpopup.*
http://*/ads/*
http://*/adserv.*
http://*/adsetup.js*
http://*/AdsNew/*
http://*/adsweb.*
http://*/adtags/*
http://*/adview*
http://*/adx.*
http://*/asw.js
http://*/banner.js*
http://*/banner/*
http://*/banner_*
http://*/banners/*
http://*/BurstingRes/*
http://*/creativita/*
http://*/mjx.js*
http://*/pub80.js*
http://*/publicidade/*
http://*_ads.js*
http://*_adspaces*
http://*_mjx.js*
http://*_pubblicita*
http://*adbrite*
http://*adbureau*
http://*ademails*
http://*adlayer*
http://*adsense*
http://*adserver*
http://*adsonar*
http://*adsrevenue*
http://*adtegrity*
http://*adtology*
http://*adultadworld*
http://*adultartnetwork*
http://*adultfriendfinder*
http://*arcuspubblicita*
http://*atdmt*
http://*atwola*
http://*axelsfun*
http://*banneradmin*
http://*bidvertiser*
http://*blogads*
http://*bravenet*
http://*clickthrucash*
http://*clicktorrent*
http://*directtrack*
http://*doubleclick*
http://*edgesuite*
http://*edintorni*
http://*espanacash*
http://*estelle.tv*
http://*etology*
http://*eyewonder*
http://*fastclick*
http://*fff-friends*
http://*forex-affiliate*
http://*fusioncash*
http://*googlesyndication*
http://*henwo*
http://*hotlog*
http://*impresionesweb*
http://*intellitxt*
http://*jaguarpc*
http://*jeeone*
http://*KonaLibInline.js*
http://*kontera*
http://*lduhtrp*
http://*mercadolibre*
http://*mrskincash*
http://*muchomp3*
http://*mybloglog*
http://*neodatagroup*
http://*oascentral*
http://*omniture*
http://*overture*
http://*oxado*
http://*performix*
http://*pheroline*
http://*publipagos*
http://*randomad*
http://*RealMedia*
http://*server4business*
http://*sexshop*
http://*shoppingads*
http://*targetpoint*
http://*text-link-ads*
http://*tradedoubler*
http://*tribalfusion*
http://*tumri*
http://*tuvideogratis*
http://*vaginegames*
http://*webgraffiti*
http://*webmasterplan*
http://*widgetbucks*
http://*yadro*
http://*yieldmanager*
http://*yourp2p*
http://*zanox*
http://*zedo*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://a.ads"
linktext was:"http://a.ads"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://adimg"
linktext was:"http://adimg"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://adlog"
linktext was:"http://adlog"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://ads"
linktext was:"http://ads"
====================================
.*
http://adv-*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://adv"
linktext was:"http://adv"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://advertiser"
linktext was:"http://advertiser"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://affiliates"
linktext was:"http://affiliates"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://banners"
linktext was:"http://banners"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://cached.it"
linktext was:"http://cached.it"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://ds.serving-sys.com"
linktext was:"http://ds.serving-sys.com"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://jaco.box.sk"
linktext was:"http://jaco.box.sk"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://layer-ads.de"
linktext was:"http://layer-ads.de"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://media.intelia.it"
linktext was:"http://media.intelia.it"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://pagead"
linktext was:"http://pagead"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://pagead2"
linktext was:"http://pagead2"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://payperpost"
linktext was:"http://payperpost"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://promos"
linktext was:"http://promos"
====================================
.*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://rad.msn.com"
linktext was:"http://rad.msn.com"
====================================
*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://rcm-de.amazon.de"
linktext was:"http://rcm-de.amazon.de"
====================================
*
https://*doubleclick*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"https://ad"
linktext was:"https://ad"
====================================
.*
:Adchia's Extra
http://*.nyadmcncserve*

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"https://forums.comodo.com/images/join_forum_bttn.gif"
linktext was:"https://forums.comodo.com/images/join_forum_bttn.gif"
====================================


========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"https://forums.comodo.com/images/lock_on.gif"
linktext was:"https://forums.comodo.com/images/lock_on.gif"
====================================


========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"https://secure.comodo.net/images/cornertrust.gif"
linktext was:"https://secure.comodo.net/images/cornertrust.gif"
====================================


========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://www.gradesaver.com/file/adImages/"
linktext was:"http://www.gradesaver.com/file/adImages/"
====================================
*
https://*.mediaplex.*
*.adsdk.*

3. Save

4. Start / Restart Opera

Privoxy is an extremely excellent ad and crud blocker.

========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://www.privoxy.org"
linktext was:"http://www.privoxy.org"
====================================
" onclick="window.open(this.href);return false
config:
========= SCRAPER REMOVED AN EMBEDDED LINK HERE ===========
url was:"http://config.privoxy.org"
linktext was:"http://config.privoxy.org"
====================================
" onclick="window.open(this.href);return false

In faith, Dave
Viva Texas