Typepad Vs. Commentspam
- The steps that Typepad has taken in order to rid its users of spam comments.
- http://www.sixapart.com/typepad/news/2004/05/typepad_vs_comm.html

Glo Productions
- Essays about comment spam and how one blogger is fighting it.
- http://www.glo-productions.com/category/web-spam/comment-spam/

Akismet
- A plugin which identifies and blocks comment and trackback spam on blogs with integration to various blogging systems.
- http://akismet.com/

Webmaster Kit: Stop Spam
- Offers a script using the Turing Test, intended for spam prevention in guestbooks, blogs and wikis.
- http://php.webmaster-kit.com/

Learning Movable Type: Concerning Spam
- Types of spam seen on blogs.
- http://www.learningmovabletype.com/archives/000246concerning_spam.php

Spam Huntress - Spam cleaning for blogs
- Spam huntress dissects blogspam.
- http://spamhuntress.com/2005/04/13/spam-cleaning-for-blogs/

Jeremy Zawodny's Blog: Using mod_rewrite against comment spam bots
- Very short tutorial.
- http://jeremy.zawodny.com/blog/archives/003862.html

BBC News - How spammers are targeting blogs
- Spammers are turning their attention to weblogs, angering technology analyst Bill Thompson. He calls it "flyblogging."
- http://news.bbc.co.uk/1/hi/technology/3210623.stm

Simon Willison: Blacklisting Comment Spam
- One man's efforts to create and maintain a blacklist.
- http://simon.incutio.com/archive/2003/09/02/blacklisting

Jeremy Zawodny's Blog - Guerilla Tactics Against Blog Comment Spammers
- Suggestion that bloggers create posts that target the same spammy phrases that blog spammers want Google to find.
- http://jeremy.zawodny.com/blog/archives/001000.html

OJR : Bloggers Declare War on Comment Spam, but Can They Win?
- "Here's a look at the battle so far."
- http://ojr.org/ojr/glaser/1095201311.php

Wired - Googlemania: The (Evil) Genius of Comment Spammers
- Background of the phenomenon of comment spam and how bloggers responded.
- http://www.wired.com/wired/archive/12.03/google.html?pg=7

Internetnews.com - Six Apart Trains Guns on 'Comment Spam'
- The blog tools vendor Six Apart plans to roll out an open online authentication system to fight the growing phenomenon of comment spam.
- http://www.internetnews.com/dev-news/article.php/3331341

Blogspam.org - Anti-Comment Spam Tactics
- Series of steps to stop spam in your blogs.
- http://www.blogspam.org/solutions.html

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

Simon Willison's Weblog - Solving Comment Spam
- Feasible ways to stop or thwart comment spam.
- http://simon.incutio.com/archive/2004/01/28/solvingCommentSpam

Big Fractal Tangle: Designing For Lowlifes
- Discusses how better, smarter tools are needed to block or remove comment spam in realtime.
- http://bigfractaltangle.com/archive/2004/01/19.jsp

Yoz Grahame's Cheerleader: Seven quick tips for a spam-free blog
- A list of tips aimed at webloggers to reduce the problem of comment spam.
- http://cheerleader.yoz.com/archives/000849.html

Blog Spam Database
- Database of URLs and phrases often used by spammers, along with links to related resources and a discussion forum.
- http://www.markcarey.com/spamdb/

MSNBC - Spammers now clogging blogs, IM
- Spam has never been limited to e-mail. But now, commercial pitches are increasingly popping up in online chats, instant messages, cell phones with text messaging and weblog comments.
- http://www.msnbc.msn.com/Default.aspx?id=3475953&p1=0

Wired: When the Spam Hits the Blogs
- Owners of weblogs have recently noticed that their referral logs have become the newest target for spam.
- http://www.wired.com/news/culture/0,1284,56017,00.html

Six Log: Comment Spam
- Spammers are abusing comment systems to increase their rank on Google. Here are some steps to take to reduce or eliminate this problem.
- http://www.sixapart.com/log/2003/10/comment_spam.shtml

MT-Blacklist/Comment Spam Clearinghouse
- A centralized blacklist database of blog spam URLs.
- http://www.jayallen.org/comment_spam/

Kalsey Consulting Group - Comment Spam Manifesto
- Weblogger crystallizes the thoughts of many in declaring a cyberwar on those who inappropriately post in guestbooks and weblogs.
- http://kalsey.com/2003/11/comment_spam_manifesto/