Path Blocking with Metacharacters

[Faxopita]

Thanks to both of you. Indeed, there were some crude syntax errors that I haven't revised for two years. Below the revised version based upon your suggestions.

Code:

{ +block }
#
# Provided by "Artisan Numérique"
# Source: http://artisan.karma-lab.net/premunir-spywebs-privoxy
#
   .google-analytics.com
   .xiti.com
   .hit-parade.com
   .toutlemondeenblogue.com
    visit.geocities.com
   .yimg.com
   .cybermonitor.com
   .overture.com
   .mybloglog.com
   .webtrendslive.com
   .adnext.fr
   .quantserve.com
   .stats.wordpress.com
   .ixnp.com
   .statcounter.com
   .extreme-dm.com
   .googlesyndication.com
   .typepad.com/t/stats.*
   .sitemeter.com
   .myustats.com
   .reinvigorate.net
   .clicktale.net
   .hittail.com
   /xiti.js
    cetrk.com

# Ad Agencies/Networks
#
   .netavenir.com
   .turn.com
   .bluestreak.com
   .criteo.com
   .blogbang.com/demo/js/blogbang_ad.php\?id=
   /(.*/)?microsoft_adcenterconversion\.js
   .marketingsolutions.yahoo.com
   .googleadservices.com
   .fmpub.net
   .pubsrv.allopass.com
   .comclick.com
   .regieci.com
   .allo-audience.fr
   .audientia.net
   .clickintext.com
   .clickintext.net
   .intellitxt.com
   .payperpost.com

# Recorders
#
   .clicktale.*
   .cetrk.com
   .robotreplay.com
   /(.*/)?clickheat.js

# Audicence Measurement/Tracking
#
   .estat.com
   .sitemeter.com
   .w3counter.com
   .reinvigorate.net
   /(.*/)?webanalytics
   .opentracker.net
   .weborama.*
   .quantserve.com
   .performancing.com
  
    stats.wordpress.com
   .technorati.com
   /.*xiti.js
   .getclicky.com
   .iminr.com
   .netprofitblueprint.com
   .converdge.com
   .cybermonitor.com
   .blogitexpress.com/.*\.js
   .atoomic.com/js
   .clustrmaps.com/counter
   .trackalyzer.com
   .log.tf1.fr

# Page Ranking
#
   .free-pagerank.com/fcgi-bin/alive_js.fcgi.*    
    external.wikio.fr/blogs/top/getrank
   .pagerank.fr/pagerank-actuel.gif

# Tracker Logger
#
   .mybloglog.com

# Feed Tracking
#
    feedjit.com

# Special Google
#
   /.*utm.js
   /.*stat.*\.js
   /.*/urchin.js
   /.*s_code.js
   /.*google-analyticator.*

# Nuisances
#
   .snap.com
   .ixnp.com
   .twitter.com
   .webreseau.com
   .devfr.net
   .facebook.com/badge
   .blogbar.org

# Webbugs
#
   /.{300}

Note: sometimes I feel more comfortable writing /(.*/)? instead of /.*/