1.1 Spam (electronic)
Wikipedia on General Electronic Spam
http://en.wikipedia.org/wiki/Spam_(electronic)

2.1 No Guestbook Spam Anymore
Offers instructions for webmasters for avoiding and eliminating spam in guestbook.
http://www.nogbspam.com/

2.2 Spam Links - the anti-spam portal
Spam Links, the anti-spam portal; everything you didn't want to have to know about spam.
http://spamlinks.net/

2.3 Interview with a link spammer.
Exclusive Sam - let's call our interviewee Sam, it's suitably anonymous - lives in a three-bedroom semi-detached house in London, drives a vintage Jaguar and runs his own company. But "it's not not all rock and roll and big money", says Sam. What isn't? Spamming websites and blogs with text to pump up the search engine rankings of sites pushing PPC (pills, porn and casinos), that's what. Read more >>>
http://www.theregister.co.uk/...link_spamer_interview

2.4 Link Spam Detection Based on Mass Estimation
Technical Report, Stanford University, October 31, 2005. PDF document. This is based on a Stanford student's summer internship at Yahoo!
http://dbpubs.stanford.edu:8090/pu...005-33.pdf

2.5 Link Spam
Link spam is a serious problem for wikis, blogs, and people using search engines.
http://chongqed.org/link-spam.html

3.1 E-mail spam - Wikipedia, the free encyclopedia
Wikipedia on Email Spam
http://en.wikipedia.org/wiki/E-mail_spam

3.2 Coalition Against Unsolicited Commercial Email
iCAUCE is an international organisation formed by organisations around the world engaged in pressing for laws against e-mail spam, which includes both unsolicited commercial email (UCE) and unsolicited bulk email (UBE). iCAUCE's mission is to provide a support mechanism for volunteers who wish to undertake these activities in countries that do not have an independent lobbying organisation.
http://www.cauce.org/

3.3 Spam Laws

• Spam Laws: United States (http://www.spamlaws.com/us.shtml)
• European Union (http://www.spamlaws.com/)
• Other countries (http://www.spamlaws.com/world.shtml)

3.4 The Apache SpamAssassin Project
The home page for the open-source Apache SpamAssassin Project.
http://spamassassin.apache.org/

3.5 Fight Spam on the Internet!
Help Stamp Out Spam! Anti-junk mailfilters, IP blocking, blacklists, other boycott tools to keep the net useful for everyone.
http://spam.abuse.net/