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	http://www.unspam.com/ - http://www.unspam.com/ A consulting company for businesses and governments promoting do-not-email registries. Includes spam news and articles.
	Why Am I Getting All This Spam? - http://www.cdt.org/speech/spam/030319spamreport.shtml Report from the Center for Democracy and Technology analysing how email addresses posted on websites and in newsgroups attract spam, and how effective different obfuscation techniques are.
	Wikipedia - CAPTCHA - http://en.wikipedia.org/wiki/CAPTCHA Explains how captcha features can keep spammers from signing up for certain accounts online, such as email or weblogs. Explains how the system can be circumvented as well.
	Email Address Encoder - http://w2.syronex.com/jmr/safemailto/ Offers simple and user challenge JavaScript based email encoder to prevent email harvesting.
	SEC Suspends Trading of 35 Companies Touted in Spam Email Campaigns - http://www.sec.gov/news/press/2007/2007-34.htm Press release from the US Securities and Exchange Commission, explaining their recent actions to help curb stock tout spam.

	Email address encoder - http://www.wbwip.com/wbw/emailencoder.html Transforms ascii email addresses into their equivalent decimal entity through the use of Character Entities.
	Paul Graham: Antispam - http://www.paulgraham.com/antispam.html An intensive study essentially discussing spam-filtering techniques.
	SpamMotel - http://www.spammotel.com/ Offering anti-spam program and disposable email addresses.
	Emailias - http://www.emailias.com/ A service that allows a person to generate new e-mail aliases to give to websites that want contact information.
	Anti-Spam | Stop Spam Bots - http://www.safeemail.org/ Converts HTML code to hide email address from spam bots.

	Obsfuscate Email Addresses - http://www.alicorna.com/obfuscator.html Ciphers email addresses to foil spambots.
	Graphic @ for Spam Prevention - http://jamesthornton.com/software/graphic@.html Prevent e-mail siphons from harvesting your e-mail address by not using the commercial "@" character when displaying your e-mail address on a Web page; use a graphical "@" instead. Examples in Perl, OpenACS, PHP, and ColdFusion.
	Redirect Mailto: For Spam Prevention - http://jamesthornton.com/software/redirect-mailto.html Prevent e-mail siphons from harvesting your e-mail addresses by separating the address from the Web page while still providing a way for users to click a link and have it open their local mailer. Examples in Perl, OpenACS, PHP, and ColdFusion.
	How do spammers harvest email addresses? - http://www.private.org.il/harvest.html Several methods are described.
	Spambot Beware - http://www.turnstep.com/Spambot/ How to avoid, detect and harass spambots. Spambots are programs that extract email addresses from web pages, which are then used as targets for spam.

	Some Simple and Practical Means to Help Avoid Spam - http://w2.syronex.com/jmr/spam.html Offers a few simple suggestions.
	Spam.org - http://www.spam.org/ Information about fighting and reducing spam. Links to major related sites and news.
	MessageLevel - http://www.messagelevel.com The company that invented true Message Level Authentication for e-Mail. Provides an overview of the concept, product descriptions, how to get it for your organization and how to become a partner.
	No Spam Email - http://www.venuemail.us/ Private email address with your own domain and unlimited aliases prevents spammers from obtaining real email address.
	Personal Email Networks: An Effective Anti-Spam Tool - http://www.arxiv.org/abs/cond-mat/0402143 An automated graph theoretic method for identifying individual users' trusted networks of friends in cyberspace. [PDF/PostScript]

	BlackSpider Technologies - http://www.blackspider.com Provides spam filtering and virus protection for corporate customers.
	Sugarplum - http://www.devin.com/sugarplum/ Generates fake data to give to e-mail harvesting robots.
	MailVeil spam prevention - http://www.mailveil.com/ Offers a service to munge email addresses using flash to prevent harvesting.
	Stopping Spambots: A Spambot Trap - http://www.neilgunton.com/spambot_trap/ Neil Gunton describes his experiences with software programs browsing websites looking for email addresses, and the techniques he developed to stop them.
	BestPrac.Org - http://www.bestprac.org/ Learn about best practices in spam prevention and eradication.

	Anti-Spam tips and Resources for Webmasters - http://www.altruists.org/static/page.asp?id=168 Tips to publish email addresses on the web more safely. Includes a text-to-image converter and javascript encoders.
	PHP Spam Poison (phpwpoison) - http://www.mariovaldez.net/software/phpwpoison/ An automated page generator that create long lists of fake email addresses to poison the spammer's database.
	OptOutByDomain.com - http://www.optoutbydomain.com/ Universal opt-out by domain list; created as a "convenient opt-out" measure per the CAN-SPAM act.
	Agent Spam - http://www.agentspam.com Commercial spam / virus filtering services for corporations and ISP's.
	How Do Spammers Get Email Addresses? - http://www.newcreations.net/webmaster/spam.html Twelve ways spammers obtain email address. Includes links to websites explaining how to trace spammers down.

	How to Stop Messenger Spam - http://www.re-quest.net/computers/messenger-spam/index.htm Explains how to stop web pop-up spam advertising in Windows Messenger.
	Spam-Proof Your Web Page - http://www.seafield-technologies.com/spam-proof/ Free service to encode the email addresses in your website so that they cannot be gathered by email robots.
	Avoid Spam - http://www.avoidspam.co.uk Spam related news, articles, reviews, downloads and forums.
	Stop Spam Email - http://homepage.ntlworld.com/nick.daws/ Offers advice under the categories of ISP filtering, services, software, sundries, hints and tips.
	How to Block E-mail Relaying - http://members.tripod.com/martin_leese/EmailRelaying/ What to do when your computer is used to relay spam.

	MessageDefense, LLC - http://www.messagedefense.com Offers services to businesses by acting as an agent between senders and recipients to prevent spam and other insecure email. Includes links to news on spam.
	Spam Vampire - http://thescambaiter.com/antispam/ Aims to educate how spammers pay for bandwidth and how spam victims can fight back by endlessly loading their graphics to cost spammers money. Includes examples and customizable pages a victim can tailor to target specific spammers.
	The Spammeister Guide to Spam - http://home.comcast.net/~spammeister/ FAQ on spam including ways to reduce the flow of junk email or become spam free.
	Outlook Express Tutorial - http://www.webterrace.com/outlook/filter.htm Step by step explanation with screenshots of how to set filters.
	Tim Williams: Anti-SpamBot Countermeasures - http://www.u.arizona.edu/~trw/spam/ Ciphers email addresses to foil spambots.

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