Pradeep Dsouza wrote: If you're not running the current 1.4 stable release, I strongly recommend that you upgrade. With $wgEnableSorbs on, anonymous edits and account creations are checked against the SORBS open proxy server blacklist. A quick spotcheck of wikis sporting spam that's been recently complained about has shown them to be either all or mostly running older versions (1.4.0 or 1.3.x) that don't include support for this check, and the IP addresses of these edits seem to be marked as open proxies by SORBS. Of course if you serve a community in which open proxies are the norm you may disable this protection. There's also the SpamBlocker extension which allows you to set up a blacklist of URLs. This is not really designed for distributed use yet however, and requires some hacking if you want to use our central list. See: http://cvs.sourceforge.net/viewcvs.py/wikipedia/extensions/SpamBlacklist/RE… -- brion vibber (brion @ pobox.com)

Hi think we discussed this on IRC: my answer is CAPTCHA, but I know this solution is not yet operational for sight disabled public, although some mp3 technics are being tried. The code and explanations for inserting a captcha on wikipedia is at http://www.fxparlant.net/Category:Mediawiki#Captcha Hope this helps Fxparlant (François)