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.

Types of spam seen on blogs.

Weblogger crystallizes the thoughts of many in declaring a cyberwar on those who inappropriately post in guestbooks and weblogs.

Very short tutorial.

Suggestion that bloggers create posts that target the same spammy phrases that blog spammers want Google to find.

The blog tools vendor Six Apart plans to roll out an open online authentication system to fight the growing phenomenon of comment spam.

A plugin which identifies and blocks comment and trackback spam on blogs with integration to various blogging systems.

Database of URLs and phrases often used by spammers, along with links to related resources and a discussion forum.

Discusses how better, smarter tools are needed to block or remove comment spam in realtime.

Spammers are turning their attention to weblogs, angering technology analyst Bill Thompson. He calls it "flyblogging."